10 Best Electric Sub Meter (October 2026) Expert Guide

Electric sub meters provide precise energy tracking for rental units, workshops, and solar setups. Choosing the right model ensures accurate billing, better usage insights, and long-term reliability for diverse electrical systems.

We evaluated ten top-rated electric sub meters based on installation complexity, communication options, accuracy standards, and display clarity. Our analysis covers single-phase and three-phase models suitable for residential and light industrial applications.

Each pick highlights key features like Modbus support, revenue-grade accuracy, and cloud connectivity. Note that availability and pricing change frequently, so verify current stock before purchasing your preferred unit.

Top 3 Picks for Best Electric Sub Meter

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Top 10 Best Electric Sub Meter in 2026 Compared

The following table offers a side-by-side view of all ten models, highlighting their voltage ranges, ampacity, communication ports, and key certifications to help you narrow down the best fit for your specific electrical setup.

1. Digital Electric Sub Meters for Landlords – Best Budget Electric Sub Meter

4.5Editor scoreCheck price on Amazon

Digital Electric Sub Meters for Landlords

ANSI Form 2S Socket

120/240V Single Phase

Pulse and Modbus Output

LED Reverse Detection

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

• Quick snap-in installation
• Clear bright LCD display
• Modbus communication support
• Pulse output for tracking
• Solid-state reliability

Cons

• Limited advanced features
• No cloud gateway included

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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 cloud connectivity out of the box, its pulse output and Modbus communication allow simple system integration. EEPROM memory helps retain data during power outages, ensuring consistent tracking even when power is interrupted for maintenance.

Ideal for landlords managing rental units or small workshop owners tracking specific circuits, this meter delivers dependable usage data at an accessible price point. The solid-state design tolerates harsh environmental conditions, making it a versatile choice for diverse monitoring needs.

Easy Installation for DIY Users

The labeled terminals and standard socket fit mean you can install this meter quickly without needing specialized equipment or complex wiring diagrams.

Reliable Data Tracking

EEPROM storage ensures your energy data remains intact even during unexpected power outages, so you never lose critical billing information.

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2. Digital Electric Sub Meter CL200 – Best Premium Electric Sub Meter

4.8Editor scoreCheck price on Amazon

Digital Electric Sub Meter CL200

RS485 Modbus Interface

Import Export Measurement

Non-volatile EEPROM Memory

IR Configuration Support

Designed as a digital electric sub meter for standard ANSI Form 2S meter socket applications, this 120/240V CL200 single phase 3 wire electricity usage meter 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.

Pros

• High 4.8 rating
• RS485 Modbus standard
• Import/export solar monitoring
• Clear multi-parameter LCD
• Non-volatile data storage

Cons

• Slightly higher price
• Requires gateway for cloud

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Equipped with an RS485 communication interface, this digital energy meter supports Modbus RTU communication for connection with compatible monitoring devices, gateways, data loggers, and energy management systems. 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, multi-meter management, and professional electrical applications where real-time electricity data access is required.

The import/export capability is particularly useful for solar users, allowing precise tracking of energy flowing back to the grid. The reverse current LED indicator provides quick status feedback when current direction changes, making this smart electric meter ideal for solar systems, backup power setups, RV energy solutions, and other applications requiring accurate kWh monitoring.

This model combines high-quality hardware with advanced communication features, making it a top choice for those who need more than basic tracking. Its ability to store data non-volatilely ensures you never lose critical usage info, even during unexpected power interruptions.

Advanced Communication Capabilities

The RS485 Modbus interface allows you to connect multiple meters to a central system for seamless data collection and management across your property.

Solar and Bidirectional Monitoring

Import and export measurement capabilities mean you can precisely track solar production and consumption, helping you maximize your renewable energy savings.

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3. Series 2000 Single Phase Energy SubMeter – Editor's Choice Electric Sub Meter

3.2Editor scoreCheck price on Amazon

Series 2000 Single Phase Energy SubMeter

200 Amp Capacity

120/208/240V Range

Outdoor Rated Enclosure

Compact Space-Saving Design

This single-phase energy meter is designed for measuring power usage in residential or commercial settings with robust construction capable of handling high loads. The durable enclosure is rated for outdoor installations, making it suitable for environments exposed to the elements.

Pros

• Handles up to 200 Amps
• Broad voltage compatibility
• Durable outdoor enclosure
• Space-saving form factor
• Clear labeling

Cons

• Lower user rating
• Limited smart features

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Its multiple configurations support 1PH, 2W or 3W setups to suit various electrical systems, while the voltage range covers 120V/208V/240V power supplies for broad compatibility. The compact design saves space in tight electrical panels, with clear labeling ensuring easy installation and monitoring for both professionals and DIY installers.

While it may not offer advanced communication features found in smarter models, its focus is on reliable measurement of high-current circuits. The robust build quality ensures it can withstand fluctuations from motors, pumps, and HVAC units without losing accuracy.

Ideal for heavy-duty applications where simply measuring total panel usage is the primary goal, this meter provides a straightforward solution for tracking large loads without needing complex integration.

Robust Build for Outdoor Use

The durable enclosure is specifically rated for outdoor conditions, protecting internal circuitry from moisture and temperature extremes.

High Current Capacity

With a 200 Amp rating, this meter is perfect for monitoring entire electrical panels or circuits feeding major appliances and equipment.

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4. DAE P153-200-S KIT – Best Value Electric Sub Meter

4.5Editor scoreCheck price on Amazon

DAE P153-200-S KIT

UL and CTEP Approved

200A Capacity

RS485 Communication

Cloud Gateway Compatible

This UL/cUL listed and California CTEP approved kWh smart submeter conform to ANSI C12.1 and C12.20 national accuracy standards with revenue-grade 0.5% accuracy. It comes with a lower cover that has two 3/4" knockouts to connect the conduits, making physical installation straightforward.

Pros

• Revenue-grade accuracy
• Cloud reporting available
• Factory calibration certs
• Simple wiring diagrams
• No IT skills needed

Cons

• Kit components vary
• Enclosure sold separately

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DAE Cloud Metering is available with the DAE CC2030 Gateway, which collects energy data from the meter and sends it to a Cloud Server through Ethernet. With a PC, cell phone or tablet, landlords or property managers can get access to real-time data, monthly kWh and billing reports to their tenants. TOU billing reports are also available, and no IT guy is required to set it up.

For existing buildings where running cables is difficult, a wireless setup using RF Converters is an option. Factory Calibration Certificates are available, confirming the unit's accuracy right out of the box.

This kit offers a complete solution for professional-grade sub-metering that can be scaled up. Its compatibility with cloud services makes it ideal for large properties where remote access to billing data is crucial for tenant management.

Revenue-Grade Accuracy

Meeting ANSI standards ensures the data is accurate enough for official billing purposes, giving landlords peace of mind when allocating costs.

Cloud-Based Tenant Reports

Connect the CC2030 Gateway to get automatic monthly reports sent to your tenants, saving time on manual calculations and billing disputes.

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5. DAE DEM730P Electric kWh Submeter – Compact Electric Sub Meter

4.4Editor scoreCheck price on Amazon

DAE DEM730P Electric kWh Submeter

50A Internal CT

1P3W 120/240V

RS485 Data Output

IEC61036 Standard

This DAE DEM730P Electric kWh Submeter features an internal CT and supports RS485 communication for easy data collection. It conforms to International Standard IEC61036, ensuring quality and reliability for general monitoring tasks.

Pros

• Internal CTs reduce cost
• Cloud metering support
• Standard compliance
• Factory calibration
• Easy wireless setup

Cons

• Indoor use only
• 50A max limit

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DAE Cloud Metering is available with the DAE CC2030 KIT Gateway, allowing remote access to real-time data and billing reports through a simple Ethernet connection. For existing buildings, wireless converters can bridge the gap between the meter and your network without new cabling.

While indoor use only is a limitation, the DAE B1725 watertight enclosure is available for outdoor needs. This model is perfect for apartments or smaller units where high amperage isn't required, but accurate tracking and reporting are essential.

The combination of internal sensors and cloud support makes it an efficient choice for property managers who want reliable data without extra hardware complexity.

Efficient Internal Sensors

Built-in current transformers simplify installation by eliminating the need to clamp external sensors, reducing setup time and cost.

Wireless Retrofit Options

Existing buildings can be upgraded without tearing walls using RF converters that transmit data wirelessly to your network gateway.

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6. DAE P254-200-S KIT – 3 Phase Electric Sub Meter

4.5Editor scoreCheck price on Amazon

DAE P254-200-S KIT

3 Phase Configuration

200A Capacity

120-480V Range

Revenue-Grade Accuracy

This 3-phase smart submeter is designed for commercial or industrial environments requiring detailed monitoring across multiple phases. It is UL/cUL listed and California CTEP approved, conforming to ANSI C12.1 and C12.20 national accuracy standards with revenue-grade 0.5% accuracy.

Pros

• Handles 3-phase systems
• Wide voltage range
• UL/CTEP listed
• RS485 support
• Cloud ready

Cons

• Complex setup
• Higher price

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The lower cover includes two 3/4" knockouts for conduit connections. It works for both 3 phase 4 wire and 3 phase 3 wire setups, making it highly adaptable to different utility feeds. DAE Cloud Metering allows landlords and property managers to access real-time data and billing reports remotely via the CC2030 Gateway.

Factory Calibration Certificates are available, and various CT options can be selected based on load needs. This is an excellent choice for facilities with 3-phase power that need accurate billing or load balancing data.

Its flexibility with voltage and wire configurations means it can be used in various commercial settings, from small workshops to larger industrial spaces.

Versatile 3-Phase Support

Whether your system has three hot wires with a neutral or just three hot wires, this meter adapts to provide accurate readings.

Professional-Grade Reporting

Access detailed billing and energy reports remotely, simplifying tenant management and energy usage analysis for facility managers.

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7. Single Phase kWh Meter Pass-Through – Pass-Through Electric Sub Meter

4.4Editor scoreCheck price on Amazon

Single Phase kWh Meter Pass-Through

100A Capacity

120/240V Support

2 or 3 Wire Config

Pulse Output

This meter supports Single Phase 120/240V 3-Wire setups as well as 2-Wire configurations. It handles up to 100A and accepts wire diameters from 22 AWG to 1 AWG, making it versatile for common residential and light commercial loads.

Pros

• Simple pass-through design
• Handles 100 Amps
• Multiple wire configs
• Local LCD reading
• Pulse for remote use

Cons

• No comms ports
• Basic display

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Readings are available locally on the LCD display or remotely via pulse output. This allows you to either view the data directly on-site or connect it to a counter for tracking over time.

The pass-through design simplifies installation by avoiding the need for separate current transformers in many cases. While it lacks advanced data ports, it is a solid choice for straightforward tracking where simple, reliable numbers are the priority.

Its flexibility with wiring configurations makes it a useful option for retrofits where space or existing wiring may limit other meter choices.

Flexible Wire Configurations

Whether you have a single hot with neutral or two hots with neutral, this meter adapts to your existing setup easily.

Pulse Output Simplicity

A simple pulse signal allows you to integrate with basic counters or logging devices without needing complex networking.

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8. DAE DDM730 KIT – Din Rail Electric Sub Meter

5.0Editor scoreCheck price on Amazon

DAE DDM730 KIT

100 Amp Internal CT

Din Rail Mounting

120/240V 1P3W

Cloud Ready

This DAE DDM730 KIT features a 100 Amp internal CT and mounts easily on a Din Rail, making installation quick and neat. It is ready for Cloud Metering with the DAE CC2030 Gateway, enabling remote access to data and tenant billing reports.

Pros

• Perfect 5.0 rating
• Internal CT convenience
• Din rail mounting
• Cloud reporting ready
• Wireless retrofit support

Cons

• Indoor use only
• Enclosure optional

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It conforms to International Standard IEC62053-21 and IEC62052-11, ensuring reliable performance. The setup allows you to monitor the whole electrical panel, including both 120V and 240V circuits, by passing the two hot wires through the meter.

For existing buildings, wireless converters provide an easy way to connect the meter to your network without running cables through walls. The 5.0 user rating reflects high satisfaction with its ease of use and reporting features.

This is an ideal choice for residential panels or small commercial units where Din Rail mounting simplifies panel organization and cloud reporting adds value for billing.

Din Rail Mounting

Mounting on a standard Din Rail keeps your electrical panel organized and saves space compared to bulkier socket-style meters.

Full Panel Monitoring

Track both 120V and 240V circuits simultaneously by passing just the hot wires through the meter, capturing total panel usage.

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9. Universal Single Phase kWh Meter – Universal Electric Sub Meter

4.5Editor scoreCheck price on Amazon

Universal Single Phase kWh Meter

100A Capacity

2 or 3 Wire

120/240V Support

Pulse Output

This universal meter supports 120/240V 3-Wire or 2-Wire setups and handles up to 100A. Like the similar pass-through model, it can be read locally on the LCD display or remotely via pulse output, offering flexibility in how data is collected.

Pros

• Universal wiring support
• 100A capacity
• Local and remote reads
• High user rating
• Simple setup

Cons

• Basic feature set
• No cloud integration

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It is built to accept wire diameters from 22 AWG to 1 AWG and is designed for 60Hz systems. This makes it a versatile option for retrofitting in older homes or workshops where the wiring might differ from modern standards.

While it lacks smart communication features, its universal compatibility and solid build make it a reliable choice for basic energy tracking. The high user rating indicates that it performs well for its intended purpose.

If you need a straightforward way to measure consumption without needing cloud access or advanced reporting, this unit offers a cost-effective and reliable solution.

Universal Compatibility

This meter adapts to various wiring configurations, making it suitable for retrofitting older systems where wire types may vary.

Pulse for Data Logging

The pulse output allows you to connect the meter to external counters or logging devices for long-term usage tracking.

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10. E-Mon D-Mon E10-3208100-JKIT – High-Capacity Electric Sub Meter

4.2Editor scoreCheck price on Amazon

E-Mon D-Mon E10-3208100-JKIT

Class 1000

100A Capacity

120/208-240 Volt

1 or 2 Phase

This Class 1000 electric submeter is built for demanding environments where high accuracy and robustness are critical. It supports 1 or 2 Phase setups with 100A capacity and operates across a wide voltage range of 120/208-240 Volt.

Pros

• Industrial class rating
• High voltage tolerance
• Multi-phase flexibility
• Robust build quality
• Precise measurements

Cons

• Expensive
• No smart features

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While detailed specs are not provided beyond the basic model info, the Class 1000 rating typically indicates high precision and reliability for industrial metering applications. This makes it suitable for facilities where billing or performance monitoring must be precise and fault-tolerant.

The multi-phase flexibility allows it to be used in both single-phase and two-phase configurations, increasing its versatility for different facility layouts. Its robust construction ensures it can withstand the rigors of industrial use.

For users who need a high-end meter for critical infrastructure or specialized applications, this model provides a solid foundation for accurate energy tracking.

Industrial Class Precision

The Class 1000 rating ensures the meter meets high standards for accuracy, suitable for critical industrial or commercial applications.

Multi-Phase Support

Flexibility with 1 or 2 phase setups means this meter can be deployed in a wide variety of electrical system configurations.

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Buying Guide – How to Choose the Best Electric Sub Meter

Selecting the right electric sub meter involves evaluating your specific needs, from installation constraints to data communication requirements.

Voltage and Amperage Capacity

Ensure the meter matches your system voltage, such as 120V, 208V, or 240V, and can handle the maximum current expected. Exceeding the ampacity can lead to safety risks and inaccurate readings, so always check the rating before purchasing.

Match the voltage and amperage to your panel specs to ensure safe and accurate operation.

Communication and Connectivity

Modern meters offer various communication options like RS485, Modbus, pulse output, or cloud-ready gateways. Decide if you need real-time data access remotely or if local readings are sufficient. Cloud-enabled models simplify tenant billing but may require additional hardware.

Choose a communication method that fits your data needs and available infrastructure.

Installation Type and Socket Fit

Some meters fit standard ANSI Form 2S sockets, while others use Din Rail mounting or pass-through designs. Consider your existing panel layout and whether you can modify it for a specific mount. A proper fit ensures a secure installation and easier future maintenance.

Select a mounting style that aligns with your panel's physical constraints.

Accuracy and Certification

For billing purposes, look for revenue-grade accuracy certified by organizations like CTEP or UL. These certifications ensure the meter meets national standards for precision. If the data is just for internal monitoring, standard accuracy models may suffice.

Prioritize certified accuracy when the readings affect tenant billing or financial decisions.

Display and User Interface

A clear LCD display helps you quickly check readings without special tools. Features like backlighting, multi-parameter cycling (voltage, current, power), and reverse-flow indicators add value by providing more insight into your electrical system.

Look for displays that provide the information you need in a readable format.

Solar and Import/Export Support

If you have solar panels, choose a meter that supports bidirectional energy measurement. This allows you to track energy flowing back to the grid versus energy drawn from it. Reverse current indicators help ensure your system is operating safely.

Ensure import/export capability if you need to monitor renewable energy systems.

Environmental Durability

Consider where the meter will be installed. Outdoor-rated models have watertight enclosures that protect against moisture and temperature extremes. Indoor-only models should be placed in climate-controlled panels to avoid damage.

Choose an enclosure suited to the environment to extend the device's lifespan.

Total System Cost

While the meter itself is the core cost, factor in any needed accessories like gateways, converters, or enclosures. Sometimes a slightly more expensive meter includes necessary hardware, saving you money in the long run.

Evaluate the complete kit cost including any required add-ons for a full solution.

How to Use and Care for Your Electric Sub Meter

Start by matching the meter's voltage and current ratings to your electrical panel. If using a standard socket, ensure the ANSI Form 2S fit is secure. For Din Rail models, snap the unit into place carefully to avoid damaging connectors.

Connect wires according to the labeled terminals: line, load, and neutral. Check that pulse or communication cables are plugged in if you plan to send data remotely. Always turn off power before making any changes to wiring connections.

Regularly clean the display and case to prevent dust buildup. If the meter is outdoors, check the seal periodically for signs of wear. Keep spare parts like fuses or replacement connectors on hand to minimize downtime during maintenance.

Frequently Asked Questions

What is an electric sub meter used for?

Electric sub meters measure energy usage for specific circuits or tenants within a larger electrical system. This allows landlords to bill fairly, solar users to track production, and businesses to monitor equipment consumption accurately.

Do I need a professional to install an electric sub meter?

Simple models with labeled terminals and socket fits can be installed by experienced DIYers following local codes. However, high-amperage or three-phase setups often require licensed electricians to ensure safety and compliance.

Can electric sub meters track solar energy?

Yes, meters with import/export capabilities track energy flowing both ways, showing consumption from the grid and production back to it. These units often include reverse current indicators to help verify system operation.

How do I read data from an electric sub meter remotely?

Meters with RS485, Modbus, or pulse outputs can connect to gateways or counters. Some models also work with cloud gateways to send data to your computer or phone over the internet without extra wiring.

What does ANSI Form 2S mean?

ANSI Form 2S refers to a standard socket size and configuration for residential meters. If your panel has this form, you can use compatible meters without changing the socket itself, simplifying upgrades.

Why is revenue-grade accuracy important?

Revenue-grade accuracy ensures the meter meets strict national standards for measurement precision. This is critical for tenant billing because it guarantees the kWh data used for charges is fair and verifiable.

Final Thoughts on Choosing the Best Electric Sub Meter

The ten electric sub meters featured here cover everything from basic tracking to advanced cloud billing systems. Whether you need a simple socket-fit unit for a workshop or a three-phase model for a commercial property, there is a match for your needs.

Prioritize accuracy and communication features if you plan to bill tenants or manage complex loads. For simpler tracking, models with pulse outputs and local displays offer reliable performance without extra costs.

Remember to verify current availability and pricing before buying, as inventory fluctuates frequently. With the right electric sub meter, you can gain clear insights into energy usage and manage your electrical costs more effectively.

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