Digital Electric Sub Meters for Landlords
4.5Editor score
ANSI Form 2S installation
120/240V single phase
Bright LCD display
In this guide
Finding the right electric sub meter can significantly improve how you manage energy costs across rental units or workshops. These devices provide precise measurements of electricity usage, allowing for fair billing and better resource allocation without invasive changes to your main service.
We evaluated ten leading models based on accuracy, ease of installation, communication features, and compatibility with standard electrical panels. Our analysis focuses on solid-state designs that offer long-term reliability and clear digital readings for diverse applications ranging from RV parks to commercial spaces.
Each selection below highlights specific strengths like modbus integration or solar monitoring capabilities. While prices fluctuate based on market demand, these picks represent the best value and performance available this month for accurate kWh tracking and energy management.
Top 3 Picks for Best Electric Sub Meter
Digital Electric Sub Meter CL200
4.8Editor score
RS485 Modbus communication
Import export measurement
Multi-parameter LCD
DAE P153-200-S KIT
4.5Editor score
Revenue grade accuracy
Cloud metering ready
CTP approved
Top 10 Best Electric Sub Meter in 2026 Compared
Below is a detailed side-by-side comparison of the ten selected electric sub meters. Each entry highlights key specifications to help you distinguish between basic monitoring tools and advanced revenue-grade systems.
ProductsSpecificationsEditor scorePrice
Best Budget
Digital Electric Sub Meters for Landlords
120/240V single phase
ANSI Form 2S
Pulse output
Sealed housing
4.5Editor score
Editor's Choice
Digital Electric Sub Meter CL200
RS485 Modbus
Import export mode
Backlit LCD
Non-volatile memory
4.8Editor score
Best Premium
Series 2000 Single Phase Energy SubMeter
200 Amp capacity
120/208/240V
Outdoor rated
Compact design
3.2Editor score
DAE P153-200-S KIT
0.5% accuracy
Cloud metering
UL CTEP listed
RS485 interface
4.5Editor score
DAE DEM730P Electric kWh Submeter
Internal CT
RS485 interface
50 Amp capacity
Indoor use only
4.4Editor score
DAE P254-200-S KIT
3 Phase capable
120-480V
3 CTs included
UL CTEP listed
4.5Editor score
Single Phase kWh Meter
Pass-through design
100 Amp capacity
2 or 3 wire
60Hz rated
4.4Editor score
DAE DDM730 KIT
Internal CT
Din rail mount
100 Amp capacity
IEC standard
5.0Editor score
Universal Single Phase kWh Meter
100 Amp capacity
2 or 3 wire
Pass-through
120/240V
4.5Editor score
E-Mon D-Mon E10-3208100-JKIT
Class 1000
100 Amp capacity
1 or 2 phase
208-240 Volt
4.2Editor score
1. Digital Electric Sub Meters for Landlords – Best Budget Choice
Digital Electric Sub Meters for Landlords
ANSI Form 2S
120/240V
Pulse LED
Solid state
This digital energy meter is designed for simple installation in standard form 2S socket bases, making it ideal for RV, garage, and workshop electrical upgrades. The single-phase 120/240V design fits common power systems, allowing fast wiring into a breaker panel, meter box, or sub-panel without special tools.
Pros
- Easy plug-in installation
- Clear LCD readings
- Supports solar monitoring
- Durable sealed housing
- Compatible with standard boxes
Cons
- No native Wi-Fi
- Basic display options
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Its labeled terminals simplify connecting line, load, and neutral so you can begin monitoring kWh usage immediately through the bright LCD. Perfect for DIY users and professionals seeking reliable electric setup. The ANSI 2S 4-jaw fit ensures a quick snap-in install, while the Pulse and Reverse LEDs give instant confirmation of correct wiring and active meter operation.
While it lacks advanced cloud connectivity out of the box, its solid-state electronic design reliably supports tools, heaters, and other electrical loads while providing clear digital readings for billing and monitoring. Suitable for rental homes, garages, and outbuildings, it delivers dependable usage data with pulse output and Modbus communication options for simple system integration.
We recommend this unit for landlords and workshop owners who need a cost-effective solution for fair cost allocation. Its ability to retain data during power outages via EEPROM memory ensures you never lose tracking history. Whether monitoring RV pads or individual circuits, this meter offers a balance of affordability and functional precision.
Simple Installation Process
The plug-in design fits compatible meter sockets without complex wiring, saving time for both homeowners and professionals.
Solar Read Capability
Reverse flow LEDs help identify backfeed issues quickly, essential for hybrid systems and generator setups.
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2. Digital Electric Sub Meter CL200 – Top Rated Meter
Digital Electric Sub Meter CL200
RS485 Modbus
120/240V
Import/Export
EEPROM memory
Designed as a digital electric sub meter for standard ANSI Form 2S meter socket applications, this unit provides a reliable solution for residential and sub-metering applications. The plug-in design fits compatible meter sockets, RV pedestals, rental properties, garages, workshops, and small electrical systems with clear LCD readings.
Pros
- Advanced Modbus integration
- Import export energy measurement
- Multi-parameter LCD display
- Front IR interface access
- High rating from users
Cons
- Requires gateway for cloud
- Slightly higher price
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Its import/export energy measurement makes it suitable for solar and bidirectional power monitoring applications. The meter tracks energy flow between the electrical system and the grid, helping users understand power consumption, generation, and energy balance. The reverse current LED indicator provides quick status feedback when current direction changes, making it ideal for solar systems.
Equipped with an RS485 communication interface, this digital energy meter supports Modbus RTU communication for connection with compatible monitoring devices and gateways. Multiple meters can be connected through an RS485 network for centralized data collection and monitoring. This feature makes the meter suitable for advanced energy monitoring and professional electrical applications.
We consider this the best overall choice for those needing detailed data without sacrificing ease of use. The large backlit LCD display provides clear visibility of voltage, current, power, and accumulated kWh energy. Non-volatile memory retains records during interruptions, ensuring long-term reliability for tracking tenant usage or energy audits.
Bidirectional Tracking
Import and export modes allow precise monitoring of solar generation versus grid consumption for accurate billing.
Network Integration
RS485 Modbus support enables scalable monitoring across multiple properties or circuits without complex IT setup.
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3. Series 2000 – Best for High Amp Load
Series 2000 Single Phase Energy SubMeter
200 Amp capacity
120/208/240V
Outdoor rated
Flexible config
This single phase energy meter is designed for measuring power usage in residential or commercial settings requiring higher amperage ratings. It features a robust construction with a durable enclosure designed for outdoor installations, rated for up to 200 Amps, making it suitable for heavy-duty applications.
Pros
- Handles high amperage
- Outdoor durable enclosure
- Multiple configurations
- Broad voltage range
Cons
- Lower user rating
- Basic feature set
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It offers multiple configurations supporting 1PH, 2W, or 3W setups to suit various electrical systems. Compatible with 120V/208V/240V power supplies, it provides broad voltage compatibility for different utility standards. The compact design includes a space-saving form factor with clear labeling for easy installation and monitoring.
While it lacks some of the advanced digital features found in newer models, its primary strength lies in reliability under heavy load. It is designed to withstand electrical fluctuations from motors and HVAC units without losing accuracy. This makes it a practical choice for industrial spaces where basic tracking is more critical than remote access.
Buyers looking for a straightforward solution for high-capacity circuits will find this model effective. Ensure you verify local compatibility before purchase as its features are more limited compared to smart meters. It serves well as a backup or secondary meter where cost and durability are the main priorities.
Industrial Suitability
The sturdy build and high amp rating make it suitable for environments with significant power demands.
Outdoor Durability
Designed for outdoor installation, it resists environmental factors better than standard indoor-only units.
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4. DAE P153-200-S KIT – Best Premium Solution
DAE P153-200-S KIT
Revenue grade accuracy
UL CTEP listed
Cloud ready
RS485 interface
This UL/cUL Listed meter is California CTEP approved and conforms to ANSI C12.1 and C12.20 national accuracy standards. With revenue-grade 0.5% accuracy, it provides reliable billing data for professional applications. It comes with a lower cover that includes knockouts to connect conduits and an in-line fuse with holder for hot wire connection.
Pros
- 0.5% accuracy standard
- Full cloud billing features
- CTP approval included
- RF wireless options available
Cons
- Higher system cost
- Requires gateway kit
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Cloud metering is available with the DAE CC2030 Gateway, which collects energy data and sends it to a cloud server through Ethernet. Landlords can access real-time data, monthly kWh, and billing reports via PC or phone. Time of Use billing reports are available, and no IT specialist is required to set up the system.
For existing buildings where running cables is difficult, a wireless solution using RF Converters allows connection between the meter and the gateway. The system is supported by factory calibration certificates and DAE Controls, a Minority Business entity. Split core and solid core current transformers are available for various amperage needs.
This kit is ideal for property managers needing compliant, accurate billing systems. The robust compliance and cloud features justify the higher price for commercial or multi-unit rentals. It ensures you meet regulatory standards while simplifying administrative tasks with automated reporting tools.
Compliance Ready
Approved by CTEP and UL, this meter meets strict legal standards for billing and revenue tracking.
Wireless Integration
Optional RF converters eliminate the need for running data cables to the router for easy setup.
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5. DAE DEM730P – Best for Small Loads
DAE DEM730P Electric kWh Submeter
Internal CT
50 Amp capacity
RS485 support
Indoor rated
This electric kWh submeter includes an internal current transformer, simplifying installation for circuits up to 50 Amps. It features an RS485 interface and conforms to international standard IEC61036. While it is indoor use only, it works seamlessly with the DAE CC2030 KIT Gateway for cloud metering access.
Pros
- Integrated internal transformer
- Cloud ready with gateway
- Conforms to IEC standards
- Cost effective
Cons
- Indoor use only
- Limited to 50 Amps
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With the gateway, landlords can monitor real-time data and generate billing reports via PC or phone. For existing buildings, a wireless connection using RF Converters is an option to connect the meter to the gateway. It provides the same billing capabilities as the larger series but in a more compact form factor.
The device is designed to integrate easily into standard setups where high amperage is not required. Factory calibration certificates are available, and DAE Controls offers a minority supplier certificate. This makes it a good choice for smaller apartments or light commercial spaces needing reliable tracking.
Consider this if your load does not exceed 50 Amps. It removes the need for external transformers which simplifies wiring. It is an efficient way to bring cloud monitoring to smaller circuits without the bulk of larger external transformer systems.
Simplified Wiring
The internal CT eliminates the need for external transformers, reducing parts and installation complexity.
Cloud Compatibility
Works with the same cloud gateway as larger models, ensuring feature parity for small installations.
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6. DAE P254-200-S KIT – Best for 3 Phase
DAE P254-200-S KIT
3 Phase support
120-480V range
3 CTs included
UL CTEP listed
This meter supports both 3 phase 4 wire and 3 phase 3 wire configurations, making it versatile for industrial and commercial panels. It is UL/cUL Listed and California CTEP approved, conforming to ANSI C12.1 and C12.20 standards. It includes 3 CTs and comes with a lower cover featuring knockouts for conduit connections.
Pros
- Handles three phase power
- Revenue grade accuracy
- Flexible wire config
- Wide voltage range
Cons
- Complex setup
- Requires professional install
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Like the other DAE models, it supports cloud metering with the CC2030 Gateway. Landlords can access data on phones or PCs for real-time monitoring. It handles voltage up to 480V and includes an in-line fuse with holder. The unit is designed to handle significant power loads without extra inline fuses on breaker connections.
Wireless options are available for hard-to-wire locations using RF Converters. Factory calibration certificates are provided to ensure accuracy. DAE Controls, a Minority Business, backs the product with supplier certification. It allows monitoring up to eight electric panels remotely with the right kit setup.
This is the ideal choice for properties with 3-phase power systems. The high accuracy and compliance features make it suitable for commercial billing where precision matters. Ensure you have a professional electrician verify compatibility and wiring before installation due to the complexity of 3-phase setups.
3-Phase Versatility
Supports both 3-wire and 4-wire configurations for broad compatibility with industrial power panels.
Multi-Panel Monitoring
Can be paired with kits to monitor up to eight electric panels remotely for large property management.
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7. Single Phase kWh Meter – Best Pass-Through
Single Phase kWh Meter
Pass-through design
100 Amp capacity
2 or 3 wire
60Hz rated
This pass-through meter handles single-phase 120/240V 3-wire or 120V 2-wire systems. It supports up to 100A and accommodates wire diameters from 22 AWG to 1 AWG. Designed for straightforward use, it allows local reading on the LCD display or remote monitoring via pulse output if connected to external systems.
Pros
- Simple pass-through wiring
- Multiple wire configs
- Solid construction
- Easy local reading
Cons
- No advanced comms
- Manual reading
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It is rated for 60Hz systems and provides a durable solution for basic energy tracking. The design supports various wiring scenarios including 2 hots with neutral or 2 hots only. It offers a reliable way to measure consumption without needing complex digital interfaces or network connections.
Its simplicity makes it a robust choice for applications where external data collection is handled separately. The pass-through mechanism means the main wiring flows directly through the unit. This reduces potential points of failure and keeps installation costs low for basic metering needs.
This unit is best for those who prioritize physical durability and simplicity. It is less smart than networked models but excels at just doing the job of counting kWh reliably. Suitable for sheds, older buildings, or temporary setups where basic data is sufficient.
Direct Wiring
The pass-through design simplifies wiring by allowing main conductors to go directly through the meter.
Pulse Output
Pulse output allows integration with external counters without requiring advanced internal software features.
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8. DAE DDM730 KIT – Best Din Rail Mount
DAE DDM730 KIT
Internal CT
Din rail mount
Pass-through
IEC standard
This meter comes in a kit format ready for cloud metering with the DAE CC2030 Gateway. It features an internal CT and mounts on a Din rail. It conforms to international standards IEC62053-21 and IEC62052-11. It monitors the whole electrical panel for both 120V and 240V circuits.
Pros
- Perfect 5-star rating
- Din rail mounting
- Internal transformer
- Cloud ready
Cons
- Indoor use only
- Requires external box
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Only the two hot wires pass through the meter; the neutral is not connected. It can monitor 240V circuits from dual-pole breakers efficiently. Like other DAE models, it supports wireless RF connection for easy data transfer to the router. It is designed for indoor use but can be placed in a watertight enclosure for outdoor locations.
Factory calibration certificates are available. DAE Controls, a Minority Business, supplies the unit. Its perfect user rating suggests high satisfaction with its ease of use and reliability. It offers a modern approach to panel monitoring where standard Din rail mounting is preferred.
This is an excellent choice for electrical panels that are already structured with Din rail space. It offers high accuracy and flexibility without the bulk of external transformers. For new builds or retrofits where clean panel organization is key, this meter fits the bill perfectly.
Panel Organization
Din rail mounting ensures a tidy panel layout, keeping meters integrated with other components.
Neutral Pass-Through
The design allows the neutral wire to pass through without connecting, simplifying the wiring path.
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9. Universal Single Phase kWh Meter – Best Versatile Option
Universal Single Phase kWh Meter
100 Amp capacity
2 or 3 wire
Universal wiring
Pass-through
This universal meter supports single-phase 120/240V 3-wire or 120V 2-wire configurations. It handles up to 100A and accommodates wire diameters from 22 AWG to 1 AWG. It is designed to be read locally on the LCD display or remotely via pulse output. It operates at 60Hz.
Pros
- Fits many wire setups
- Solid performance
- Local display
- Pulse output
Cons
- Basic digital interface
- Limited connectivity
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Its versatility makes it a reliable choice for many standard residential and light commercial circuits. It provides a cost-effective solution for basic tracking needs. While it may not have advanced smart features, it covers the essential requirements for accurate kWh monitoring.
The pass-through design simplifies installation for many setups. It supports various wiring scenarios with ease. This makes it a practical option for projects where flexibility in wiring is needed. It ensures stable readings for standard 120V or 240V circuits.
This unit is best for those who need a proven workhorse without unnecessary extras. It is widely compatible and durable. For basic needs, it delivers consistent performance that helps manage energy use effectively without complicating the system.
Universal Fit
Supports both 2 and 3 wire configurations, making it adaptable to many existing electrical panels.
Standard Capacity
Handles up to 100A, covering most standard residential branch circuits and sub-panels.
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10. E-Mon D-Mon – Best for Legacy Systems
E-Mon D-Mon E10-3208100-JKIT
Class 1000
100 Amp capacity
1 or 2 phase
208-240 Volt
This Class 1000 meter is designed for 1 or 2 phase systems with capacities up to 100A. It operates at 120/208-240 Volt, making it suitable for various standard configurations. E-Mon is known for producing durable meters that hold up well over time. This model serves as a reliable option for specific legacy needs.
Pros
- High class rating
- Robust design
- Compatible with legacy panels
- Standard voltage support
Cons
- Older model design
- Limited modern features
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It offers standard performance without the complexity of newer cloud-enabled units. While it may not have all the modern interfaces found in other models, it delivers on core functionality. The build quality is consistent with industrial standards, ensuring it can withstand regular use.
This unit is often chosen for specific industrial or older panel setups where compatibility is key. Its 100 Amp capacity covers many standard service requirements. It provides a stable solution for energy tracking where basic accuracy is more important than smart features.
Consider this model if you need a straightforward, reliable meter for an existing setup. It is a solid choice for those who prioritize durability over connectivity. For many users, it provides the essential data needed for energy management without extra cost.
Industrial Reliability
E-Mon meters are known for robust construction suitable for commercial and industrial environments.
Legacy Compatibility
Designed to work seamlessly with older panel configurations and standard voltage setups.
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Buying Guide – How to Choose the Best Electric Sub Meter
Selecting the right electric sub meter involves understanding your electrical system and monitoring goals. This guide breaks down the key factors to help you make an informed decision.
Voltage and Phase Compatibility
Ensure the meter matches your electrical system's voltage (120V, 208V, 240V) and phase (1 or 3 phase). Most residential applications use single-phase 120/240V, but industrial or commercial panels may require 3-phase meters to measure all lines accurately.
Always check your breaker panel specifications before purchase to avoid incompatibility issues.
Amperage Capacity
Choose a meter with a current rating that exceeds your maximum expected load. Common options include 50A, 100A, and 200A. Selecting a unit with higher capacity than needed ensures accuracy and longevity, especially in circuits with fluctuating demands like welders or HVAC systems.
Underestimating amperage can lead to meter damage or inaccurate readings over time.
Communication Interfaces
Consider whether you need data output. Simple pulse output is good for basic logging, while RS485 Modbus allows integration into larger networks. Cloud-ready meters with gateways enable remote access, which is vital for property managers monitoring multiple units remotely without physical visits.
Wireless options simplify installation in existing buildings where running cables is difficult.
Installation Requirements
Assess whether you need a plug-in design for existing socket bases or a DIN rail mount for new panels. Some units come with internal transformers for easier wiring, while others require external ones. Verify if you have the necessary tools and expertise for installation or need a professional.
Plug-in meters save time, while DIN rail options offer more flexibility in custom setups.
Accuracy Standards
For billing or revenue-grade applications, look for ANSI C12.1 or CTEP approval. These standards ensure the meter's accuracy meets legal requirements for tenant billing. For general energy tracking, standard accuracy is sufficient, but financial transactions require certified precision to avoid disputes.
Certification adds cost but is essential for commercial property management.
Display and Interface
A clear LCD display with backlight is useful for local reading. Multi-parameter displays showing voltage, current, and power factor provide deeper insights than simple kWh counters. Ensure the screen cycles through relevant data points you need for your monitoring strategy.
Large text and good contrast improve readability in dimly lit electrical rooms.
Data Retention
Look for non-volatile memory like EEPROM to retain usage history during power outages. This feature ensures you do not lose accumulated data during blackouts or maintenance. For long-term tracking, continuous data storage is critical to analyzing trends and identifying usage anomalies.
Check if the device supports external storage options if cloud connectivity is not available.
Environmental Rating
Decide between indoor and outdoor ratings. Many meters require a watertight enclosure for outdoor use. Industrial units may have a ruggedized housing to handle dust and temperature variations. If you plan to install in a garage or shed, verify if the enclosure alone is sufficient or if extra protection is needed.
Indoor-only models must be housed in a protected environment to ensure longevity.
How to Use and Care for Your Electric Sub Meter
Install the meter according to the wiring diagram provided in the manual. Ensure all power is turned off before making connections. For plug-in models, snap the meter into the socket base carefully to avoid damaging terminals. For DIN rail units, attach the clip securely and run wires through the designated pass-through holes.
Monitor readings regularly using the LCD display. If your meter supports pulse output or Modbus, connect it to your data logger or gateway device. Ensure the gateway has internet access if you want remote cloud features. Check the display for any error indicators like reverse flow LEDs or communication faults.
Keep the unit clean and dry. Regularly inspect for signs of heat or loose wiring. If used outdoors, ensure the enclosure remains sealed. Avoid overloading the circuit beyond the rated amperage to prevent wear. Perform a visual check of the wiring every few months to ensure safety and reliability.
Frequently Asked Questions
Do I need a professional electrician to install an electric sub meter?
While some plug-in models are designed for DIY installation, working with electrical panels carries significant risks. Most jurisdictions require licensed electricians for meter installations to ensure code compliance and safety. If you are unsure about your wiring, hiring a professional is the safest option to prevent shocks or panel damage.
Can I use these meters for solar energy monitoring?
Yes, many modern digital sub meters support bidirectional flow monitoring. They can track both energy imported from the grid and energy exported to it, which is essential for solar systems. Ensure the model has an import/export mode and reverse current LED to verify solar backfeed accuracy.
What is the difference between pulse output and Modbus?
Pulse output sends a simple signal for every unit of energy consumed, which is easy to read with basic counters. Modbus is a digital communication protocol that allows more complex data exchange like voltage and power factor. Modbus is better for advanced energy management systems that need detailed insights.
How do I verify if a meter is compliant for billing tenants?
Check for certifications like California CTEP approval or ANSI C12.1 standards. These indicate the meter meets legal accuracy requirements for revenue-grade billing. Always consult local utility or building codes to ensure the specific meter model is approved for tenant billing in your area.
Can I monitor multiple units with one gateway?
Yes, many systems allow connecting multiple meters to a single gateway using Modbus networks or specific multi-meter kits. This centralized data collection makes managing a multi-unit property much easier. Verify the maximum number of supported devices before purchasing to ensure scalability.
What happens to my data if there is a power outage?
Most digital sub meters feature non-volatile memory like EEPROM to retain data during power losses. This ensures your usage history is not erased. However, real-time communication with cloud gateways may pause until power is restored, so local display accuracy is key for immediate checks.
Do I need external current transformers for all meters?
Not necessarily. Some meters have internal transformers, simplifying wiring for circuits up to a certain amp limit. For higher amperages, external split-core or solid-core transformers are required. Check the product specifications to see if transformers are included or sold separately.
Is cloud metering secure for sensitive data?
Reputable brands use encrypted connections and secure servers to protect energy data. Always review the privacy policy of the cloud service provider. Most systems are designed for property management, so data is typically anonymized or aggregated to protect tenant privacy.
Final Thoughts on Choosing the Best Electric Sub Meter
Whether you are managing a rental property or monitoring solar power, the right electric sub meter provides essential data for efficiency. Our top picks include the Digital Electric Sub Meters for Landlords for budget-friendly tracking, the Digital Electric Sub Meter CL200 for advanced networked features, and the DAE P153-200-S KIT for professional billing accuracy.
Prioritize features that match your current needs such as communication interfaces and compliance. If you plan to expand your monitoring capabilities later, choose a scalable model with Modbus support. Always verify compatibility with your existing panel to avoid costly returns.
Remember to check current prices before finalizing your purchase as these fluctuate regularly. Investing in a quality meter ensures long-term reliability and accurate billing. With the right tool, managing energy costs becomes much more manageable and transparent for everyone involved.