Digital Electric Sub Meters for Landlords
4.5Editor score
ANSI Form 2S Plug-In
Bright LCD Display
Pulse and Modbus Output
In this guide
Electric sub meters provide precise tracking for individual circuits or units within a larger electrical system. They allow property owners to allocate costs fairly and monitor energy consumption without relying on estimates or shared utility bills.
We compared ten top models based on accuracy, ease of installation, communication features, and overall reliability. Our analysis covers single-phase and three-phase options suitable for residential, commercial, and industrial sub-metering applications.
Each pick shows real-world performance, key specifications, and ideal use cases. While features vary by model, all selections meet common standards for kWh measurement. Note that pricing and availability may change over time.
Top 3 Picks for Best Electric Sub Meter
Digital Electric Sub Meter CL200
4.8Editor score
RS485 Modbus Communication
Multi-Parameter LCD
Import Export Energy Tracking
DAE P153-200-S KIT
4.5Editor score
Revenue-Grade Accuracy
Cloud Metering Support
UL CTEP Listed
Top 10 Best Electric Sub Meter in 2026 Compared
This side-by-side comparison highlights key specifications across all ten selected electric sub meters. Use this table to identify which model fits your voltage, amperage, and communication needs.
ProductsSpecificationsEditor scorePrice
Best Budget
Digital Electric Sub Meters for Landlords
120/240V Single Phase
ANSI Form 2S Socket
Bright LCD Display
Pulse and Modbus
4.5Editor score
Editor's Choice
Digital Electric Sub Meter CL200
120/240V CL200
RS485 Modbus Interface
Import Export Metering
Backlit LCD Display
4.8Editor score
Best Premium
Series 2000 Single Phase Energy SubMeter
120/208/240V
200 Amp Rating
Outdoor Rated Enclosure
Compact Design
3.2Editor score
DAE P153-200-S KIT
Revenue-Grade 0.5%
UL CTEP Approved
Cloud Metering Option
200A 1 Phase
4.5Editor score
DAE DEM730P Electric kWh Submeter
120/240V 50A
Internal CT
RS485 Communication
Indoor Use Only
4.4Editor score
DAE P254-200-S KIT
3 Phase 200A
120-480V Range
UL CTEP Approved
RS485 Communication
4.5Editor score
Single Phase kWh Meter
120/240V 100A
Pass-Through Design
2 or 3-Wire
Pulse Output
4.4Editor score
DAE DDM730 KIT
120/240V 100A
Internal CT
Din Rail Mount
Pass-Through
5.0Editor score
Universal Single Phase kWh Meter
120/240V 100A
2 or 3-Wire
LCD Display
Pulse Output
4.5Editor score
E-Mon D-Mon E10-3208100-JKIT
Class 1000
1 or 2 Phase
120/208-240V
100A Rating
4.2Editor score
1. Digital Electric Sub Meters for Landlords – Best Overall Electric Sub Meter
Digital Electric Sub Meters for Landlords
ANSI Form 2S Plug
120/240V Single Phase
Bright LCD Display
Pulse Modbus Output
This digital energy meter offers straightforward installation and precise power tracking for landlords and DIY users. With an ANSI Form 2S design and bright LCD, it fits common electrical systems and displays usage data clearly.
Pros
- Easy installation in standard sockets
- Accurate kWh tracking
- Bright LCD display
- Clear pulse output
- Reliable solid-state design
Cons
- Limited outdoor protection
- No built-in Wi-Fi
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The solid-state electronic design ensures reliable operation under varying loads without losing accuracy. Pulse and Modbus outputs allow integration with external systems, while EEPROM memory preserves data during power outages for long-term monitoring.
While it lacks advanced smart features like Wi-Fi, its simplicity and dependability make it ideal for straightforward sub-metering. The clear LCD and labeled terminals minimize wiring errors, ensuring immediate access to consumption data.
Ideal for rental units, workshops, and RVs needing accurate billing, this meter balances affordability with performance. Install it confidently in any 120/240V system to track energy use and manage costs effectively.
Effortless Installation
The Form 2S fit lets you snap it in without special tools.
Clear Power Monitoring
Bright LCD and LEDs confirm wiring and active operation instantly.
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2. Digital Electric Sub Meter CL200 – Best Electric Sub Meter for Integration
Digital Electric Sub Meter CL200
ANSI Form 2S Plug
RS485 Modbus Interface
Import Export Tracking
Multi-Parameter LCD
This advanced meter combines ANSI Form 2S compatibility with RS485 Modbus communication for seamless energy integration. Its large backlit LCD displays voltage, current, power, and accumulated kWh with precision.
Pros
- Advanced RS485 Modbus support
- Import export energy tracking
- Backlit LCD visibility
- High accuracy
- Non-volatile data storage
Cons
- Requires network setup
- Advanced features add complexity
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Ideal for solar setups or multi-unit rentals, it tracks import and export energy flow. The RS485 network capability allows multiple meters to send data to a central gateway, supporting scalable monitoring.
Although it demands some technical setup, the benefits of centralized data collection outweigh the effort. Non-volatile memory ensures records survive outages, and IR ports allow authorized configuration without dismantling panels.
Choose this meter for professional sub-metering needing robust communication and clear visibility. It suits landlords and technicians who prioritize accurate billing, solar monitoring, and system-wide energy analytics.
Scalable Network
Multiple units connect via RS485 for centralized data collection.
Solar Ready
Import and export tracking simplifies renewable energy analysis.
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3. Series 2000 Single Phase Energy SubMeter – Durable Outdoor Electric Sub Meter
Series 2000 Single Phase Energy SubMeter
200 Amp Capacity
120/208/240V Range
Outdoor Rated Enclosure
Compact Form Factor
Built for outdoor installation, this Series 2000 meter handles 200- draws and multiple voltage configurations. Its durable enclosure protects against elements, making it suitable for industrial or commercial applications.
Pros
- Rugged outdoor housing
- High amperage support
- Flexible voltage options
- Space-saving design
Cons
- Limited smart features
- Fewer configuration options
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While it lacks communication ports, it delivers steady power readings. The compact design simplifies panel integration, and multiple wiring setups adapt to different single-phase systems.
Users report reliable tracking but note minimal smart features. For basic sub-metering needing durability and high capacity, it remains a practical choice despite limited connectivity.
Opt for this meter in harsh environments where ruggedness matters most. It suits industrial panels, garages, or outdoor setups requiring 200- capacity without advanced digital interfaces.
Weather Resistant
Rugged enclosure withstands outdoor conditions and temperature shifts.
High Capacity
200- support handles heavy industrial loads reliably.
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4. DAE P153-200-S KIT – Best Electric Sub Meter for Professional Billing
DAE P153-200-S KIT
Revenue-Grade Accuracy
UL CTEP Listed
Cloud Metering Gateway
200A Capacity
Certified for revenue billing, this DAE meter offers 0.5% accuracy and integrates with cloud systems for tenant reports. It meets UL CTEP standards and includes RS485 communication for flexible setups.
Pros
- Revenue-grade precision
- Cloud billing support
- Professional certifications
- Wireless integration option
Cons
- Higher price point
- Requires gateway for cloud
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With options for wireless RF converters, installation is manageable even when cables are hard to run. The kit supports time-of-use billing, making it ideal for property managers needing detailed invoicing.
Though priced higher, its accuracy and cloud capabilities reduce disputes and simplify management. Factory calibration certificates verify performance, ensuring trust in long-term usage data.
Invest in this kit for professional sub-metering where billing accuracy is critical. It suits landlords and commercial users prioritizing regulatory compliance, remote access, and streamlined tenant billing.
Certified Accuracy
UL CTEP and ANSI standards ensure reliable revenue-grade billing.
Cloud Integration
Real-time billing reports accessible via web or mobile devices.
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5. DAE DEM730P Electric kWh Submeter – Best Electric Sub Meter for Indoor Tracking
DAE DEM730P Electric kWh Submeter
50A Internal CT
RS485 Communication
Cloud Gateway Compatible
IEC61036 Standard
Designed for indoor panels, this meter features internal CTs and RS485 communication. Its compact size suits smaller loads, while cloud gateway support enables remote data collection and reporting.
Pros
- Internal current transformer
- Cloud reporting ready
- Compact indoor design
- Standard compliance
Cons
- Lower amperage rating
- Indoor use only
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The IEC61036 standard ensures reliable performance, and optional RF converters allow wireless integration. Tenants and landlords can access real-time usage data for efficient energy management.
Limited to 50A, it isn't suited for high-load circuits. For standard household or workshop panels, however, it offers convenient billing tracking without external sensor complexity.
Choose this for indoor sub-metering needing remote access. It's a cost-effective choice for properties wanting simple cloud billing or tenants needing visibility into their own power use.
Compact Indoor Fit
Small size works well in tight indoor electrical panels.
Remote Reporting
Gateway access provides tenant usage via web or mobile.
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6. DAE P254-200-S KIT – Best Electric Sub Meter for Three-Phase Systems
DAE P254-200-S KIT
3 Phase 200A
UL CTEP Certified
120-480V Range
RS485 Interface
This three-phase meter handles 200A loads across 120-480V systems. UL CTEP certification ensures billing accuracy, while RS485 communication supports cloud integration for detailed tenant or machine monitoring.
Pros
- Three-phase compatibility
- Revenue-grade accuracy
- Cloud billing options
- High voltage range
Cons
- Requires 3-phase setup
- Higher cost
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It tracks multiple phases simultaneously, ideal for industrial machinery or commercial buildings. RF converters add flexibility for wireless data transfer where cables are impractical.
Priced higher than single-phase options, it delivers necessary precision and scalability. Its certifications and broad voltage compatibility make it a robust solution for larger electrical needs.
Use this meter for commercial or industrial sub-metering needing three-phase support. It fits properties prioritizing compliance, remote billing, and accurate tracking of heavy equipment or shared loads.
Industrial Grade
Three-phase and high-voltage support for commercial panels.
Certified Billing
UL CTEP standards ensure legally compliant usage records.
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7. Single Phase kWh Meter – Best Electric Sub Meter for Pass-Through Installation
Single Phase kWh Meter
100A Pass-Through
2 or 3-Wire
Pulse Output
Local LCD Readings
This pass-through meter handles up to 100A with flexible 2 or 3-wire configurations. Its local LCD and pulse output make it easy to track energy consumption without extra sensors.
Pros
- Pass-through wiring
- Flexible wire setups
- Solid amperage rating
- Simple pulse output
Cons
- No advanced smart features
- Manual readings only
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While lacking cloud or Modbus interfaces, it offers steady performance for basic tracking. The wiring design reduces installation complexity, ideal for smaller residential or workshop sub-metering.
Users note simplicity as a benefit, though limited connectivity means manual monitoring. For those prioritizing basic accuracy over smart features, it remains a reliable tool.
Pick this meter for simple circuits needing 100A tracking. It works well in settings where cost-effective, no-frills sub-metering meets straightforward billing or usage monitoring needs.
Simple Wiring
Pass-through design reduces installation steps and complexity.
Local Monitoring
LCD and pulse output provide direct usage data.
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8. DAE DDM730 KIT – Best Electric Sub Meter for Din Rail Mounting
DAE DDM730 KIT
Internal CT
Din Rail Mount
100A Capacity
Pass-Through Design
Featuring internal CTs and din rail mounting, this kit simplifies panel integration. The pass-through design handles 100A loads while monitoring whole panels or specific circuits accurately.
Pros
- Internal CT for wiring
- Din rail compatibility
- High user rating
- 100A tracking
Cons
- Indoor use only
- Basic communication
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Users appreciate its clean wiring and steady readings. Cloud gateway compatibility extends monitoring capabilities, though it remains indoor-only with optional enclosures for outdoor use.
While communication is basic, the ease of setup and reliable data make it a top choice. It suits panels needing quick retrofitting without external sensors.
Choose this for residential panels needing tidy installation. It's ideal for properties wanting straightforward tracking with minimal wiring overhead and optional remote access features.
Easy Mounting
Din rail setup fits standard panel enclosures neatly.
Clean Wiring
Internal CTs remove need for external current sensors.
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9. Universal Single Phase kWh Meter – Best Electric Sub Meter for Flexible Wiring
Universal Single Phase kWh Meter
100A Flexible Wire
2 or 3-Wire Options
LCD Display
Pulse Output
This universal meter adapts to 2 or 3-wire setups and supports up to 100A. Its LCD display and pulse output provide straightforward tracking for residential or light commercial use.
Pros
- Multiple wire options
- Solid 100A rating
- Clear local display
- Easy pulse output
Cons
- No cloud support
- Basic installation only
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Lacking cloud capabilities, it remains a reliable local monitor. The flexible wiring makes it a versatile retrofit option for various panel types.
Users favor its adaptability and clear display. For those needing simple sub-metering without extra connectivity, it delivers consistent performance.
Select this meter for panels needing wiring flexibility. It suits properties prioritizing straightforward installation, local reading, and dependable 100A usage tracking.
Wiring Flexibility
Adapts to 2 or 3-wire electrical setups easily.
Dependable Local Read
LCD and pulse output ensure consistent tracking.
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10. E-Mon D-Mon E10-3208100-JKIT – Best Electric Sub Meter for Commercial Class Ratings
E-Mon D-Mon E10-3208100-JKIT
Class 1000
100A 1 or 2 Phase
120/208-240V
SubMeter Design
Built for commercial use, this E-Mon meter offers Class 1000 ratings and 100A capacity. It supports 1 or 2-phase systems and covers common voltage ranges for diverse electrical needs.
Pros
- High class rating
- Commercial-grade build
- Dual-phase support
- Solid amperage
Cons
- Limited documentation
- Higher price point
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Its construction ensures durability and accuracy, making it suitable for larger buildings. While documentation is sparse, users appreciate its steady performance and professional design.
At a higher price, it targets buyers seeking reliability over smart features. It fits environments where class ratings and build quality take priority.
Choose this meter for commercial panels needing robust class ratings. It serves properties prioritizing long-term durability and accurate billing in mixed-phase electrical setups.
Commercial Class
Class 1000 rating ensures professional-grade accuracy.
Dual-Phase Support
Handles both single and dual-phase commercial systems.
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Buying Guide – How to Choose the Best Electric Sub Meter
Selecting the right electric sub meter requires understanding voltage, amperage, communication needs, and environmental conditions. Use this guide to match your property's electrical system with the right model.
Voltage and Amperage Compatibility
Check that the meter supports your system's voltage and amperage. Most residential units operate at 120/240V with 100A or 200A capacity. Higher amperage needs require professional-grade meters.
Verify voltage ranges and ensure the meter handles your load safely.
Communication and Smart Features
Models with RS485 Modbus, pulse outputs, or cloud gateway support enable remote tracking. Basic LCD-only meters suit simple setups, while smart models integrate with billing software.
Choose smart options for multi-unit rentals needing centralized data.
Installation and Wiring Type
Decide between plug-in sockets, pass-through wiring, or din rail mounts. Some require internal CTs, others external ones. Compatibility with your panel determines ease of setup.
Match installation type to your panel structure.
Indoor vs Outdoor Use
Most meters are indoor-only; outdoor use needs waterproof enclosures. Check housing ratings if placing units in basements, garages, or exposed locations.
Confirm outdoor ratings before installing outside.
Accuracy and Certification
Billing applications need revenue-grade accuracy (0.5% or better). Look for UL CTEP, ANSI, or IEC certifications to ensure compliance and trust.
Prioritize certified models for fair tenant billing.
Power Monitoring Needs
Determine if you need import/export tracking, time-of-use billing, or basic kWh readings. Advanced models support solar and bidirectional power flow, simplifying renewable setups.
Select features aligned with your energy goals.
Durability and Environment
Solid-state designs handle load fluctuations better. For industrial or high-humidity areas, choose rugged enclosures that protect against heat or moisture.
Pick durable units for harsh conditions.
Support and Expansion
Consider future needs like adding more meters or switching to cloud systems. Models with gateways or modbus allow scaling without replacing hardware.
Look for expandable options as needs grow.
How to Use and Care for Your Electric Sub Meter
Install the meter according to the wiring diagram, ensuring correct connections for line, load, and neutral. Use labeled terminals to avoid reverse flow or misreading errors.
Check the display regularly to verify readings match expected usage. Reset accumulated kWh if you need a fresh tracking period for specific billing cycles.
Protect the meter with a suitable enclosure if used outdoors. Avoid touching live parts during inspection, and schedule professional checks for accuracy after long-term use.
Frequently Asked Questions
What is an electric sub meter?
An electric sub meter measures energy consumption for a specific circuit, tenant, or unit within a larger electrical system. It helps allocate costs fairly and track usage without relying on main utility meters.
Are electric sub meters accurate?
Most modern digital sub meters meet accuracy standards like ANSI C12.1 or revenue-grade 0.5%. Look for UL CTEP or IEC certifications to ensure reliable billing or monitoring data.
Can I install a sub meter myself?
Simple plug-in or pass-through models may be DIY-friendly if you have electrical knowledge. However, always consult local codes and hire licensed professionals for panel changes or high-voltage work.
Do sub meters work with solar systems?
Yes, many support import/export tracking to monitor energy drawn from and fed back to the grid. Check for bidirectional features if you have solar panels or a battery backup.
How do smart sub meters connect?
Smart meters use RS485 Modbus, pulse outputs, or cloud gateways to send data to central systems. Some offer wireless RF converters for easier integration without new cabling.
Is outdoor installation safe?
Only if the meter has weatherproof housing or is inside a sealed enclosure. Standard indoor models can fail outdoors. Use rated enclosures for outdoor or high-humidity areas.
Final Thoughts on Choosing the Best Electric Sub Meter
The right electric sub meter depends on your needs, whether budget-friendly tracking or professional billing accuracy. Our top picks offer reliable performance, clear displays, and flexible connectivity.
Prioritize compatibility with your panel, certifications for accuracy, and smart features if remote access is essential. Match the model to your load capacity and environmental conditions.
Check current availability and warranty terms before purchasing. With proper installation, these meters deliver precise usage insights, fair billing, and better energy management for years.