Digital Electric Sub Meters for Landlords
4.5Editor score
ANSI Form 2S socket fit
120/240V single phase
Bright LCD with backlight
In this guide
Finding the right electric sub meter is essential for landlords, solar owners, and facility managers who need accurate usage tracking. These devices measure energy consumption separately from the main meter, allowing fair billing and better energy management across multiple tenants or circuits. A good sub meter provides reliable data, easy installation, and clear readings to help you monitor power usage effectively.
We have carefully evaluated ten top-rated electric sub meters based on their accuracy, compatibility, and feature sets. Our comparison looks at voltage ranges, communication protocols like Modbus, and ease of installation for both residential and light industrial applications. Each product was chosen for its ability to deliver consistent kWh readings and support diverse power monitoring needs.
Each pick in this list shows a unique solution for sub-metering, from budget-friendly single-phase units to advanced multi-phase systems with cloud connectivity. You will see detailed pros, cons, and specifications to help you decide which meter fits your specific electrical setup. Please note that prices and availability can change, so verify current details before purchasing.
Top 3 Picks for Best Electric Sub Meter
Digital Electric Sub Meter CL200
4.8Editor score
RS485 Modbus communication
Import export energy tracking
Non-volatile EEPROM memory
DAE P153-200-S KIT
4.5Editor score
UL CTEP approved accuracy
Cloud metering gateway ready
Revenue grade 0.5 percent
Top 10 Best Electric Sub Meter in 2026 Compared
The following table provides a side-by-side comparison of all ten electric sub meters reviewed in this guide. It highlights key specifications such as voltage range, amperage capacity, and communication options to help you quickly identify the right model for your electrical system.
ProductsSpecificationsEditor scorePrice
Best Budget
Digital Electric Sub Meters for Landlords
120/240V single phase
ANSI Form 2S socket
Pulse and Modbus output
LCD with auto-cycle display
4.5Editor score
Editor's Choice
Digital Electric Sub Meter CL200
120/240V CL200
RS485 Modbus RTU
Import export measurement
Backlit LCD display
4.8Editor score
Best Premium
Series 2000 Single Phase Energy
120/208/240V range
Up to 200 Amps
Outdoor rated enclosure
1PH 2W 3W config
3.2Editor score
DAE P153-200-S KIT
UL CTEP approved
1 Phase 3 Wire
RS485 communication port
Cloud gateway compatible
4.5Editor score
DAE DEM730P Electric kWh
120/240V input
50A internal CT
RS485 interface
IEC61036 compliant
4.4Editor score
DAE P254-200-S KIT
3 Phase 200A
120-480V voltage
UL CTEP listed
RS485 network ready
4.5Editor score
Single Phase kWh Meter Pass-Through
120/240V 3-Wire
Up to 100A
Pass-through wiring
Local or remote read
4.4Editor score
DAE DDM730 KIT
120/240V 1P3W
100 Amp capacity
Internal CT design
Din Rail mount
5.0Editor score
Universal Single Phase kWh Meter
120/240V 3-Wire
Up to 100A
2 or 3-Wire
Pulse output available
4.5Editor score
E-Mon D-Mon E10-3208100-JKIT
Class 1000
100A capacity
1 or 2 Phase
120/208-240 Volt
4.2Editor score
1. Digital Electric Sub Meters for Landlords – Best Budget Electric Sub Meter
Digital Electric Sub Meters for Landlords
ANSI Form 2S socket
120/240V single phase
Pulse Modbus output
Solid state design
This digital electric sub meter ranks first for its exceptional value and ease of use. With a 4.5-star rating, it is designed for landlords and DIY users who need reliable tracking without complex setups. Its ANSI Form 2S fit allows quick installation in standard meter bases.
Pros
- Easy installation in standard sockets
- Clear bright LCD readings
- Supports solar monitoring
- EEPROM memory retention
- IR port for configuration
Cons
- Single phase only
- No cloud gateway included
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The meter offers precise kWh tracking for tenants or RV parks, with clear LCD visibility of voltage and current. It supports solar import/export monitoring and includes Modbus communication for system integration. The solid-state design ensures durability against electrical fluctuations.
While it lacks built-in cloud connectivity, the Modbus and pulse outputs allow integration with external loggers. The single-phase limitation means it suits 120/240V systems only. For budget-conscious users needing accuracy, these trade-offs are acceptable.
Ideal for landlords managing rental units or workshop owners tracking power, this meter delivers dependable data. Its labeled terminals and bright display make it a top choice for straightforward sub-metering applications.
Cost-Effective Sub-Metering
The affordable price point and simple installation make this an ideal entry-level solution for property managers seeking fair billing.
Solar and Energy Monitoring
Reverse-flow LED and import/export tracking help solar users monitor panel performance and grid interaction accurately.
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2. Digital Electric Sub Meter CL200 – Best Electric Sub Meter
Digital Electric Sub Meter CL200
120/240V CL200
RS485 Modbus RTU
Import Export capability
Non-volatile memory
Rated 4.8 stars, this meter stands out for its advanced communication and detailed display. It is an editor's choice for professionals needing real-time data via RS485 Modbus. The import/export tracking makes it perfect for solar setups.
Pros
- Highest user rating
- RS485 Modbus support
- Detailed LCD parameters
- Import export tracking
- Front IR configuration
Cons
- Requires RS485 setup
- Price higher than basic
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The large backlit LCD cycles through voltage, current, power factor, and more, providing deep insights. Non-volatile memory retains data during outages, and the IR port allows configuration without opening the panel. Labeled terminals simplify wiring.
Setup requires understanding Modbus networks, which may challenge beginners. The price is higher than basic models but justified by the advanced features. For those needing integration, this is a reliable investment.
Recommended for landlords with multiple units or solar enthusiasts, this meter balances accuracy and connectivity. Its robust feature set ensures long-term value for energy management.
Advanced Data Integration
RS485 Modbus RTU support enables connection to centralized monitoring systems for multi-meter management.
Comprehensive Parameter Display
The LCD shows active, reactive, and apparent power alongside power factor for complete system visibility.
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3. DAE P153-200-S KIT – Best Premium Electric Sub Meter
DAE P153-200-S KIT
UL CTEP approved
1 Phase 3 Wire
RS485 port
Cloud gateway ready
This premium kit offers revenue-grade accuracy and CTEP approval, ideal for commercial billing. With a 4.5-star rating, it supports cloud metering via the CC2030 Gateway. The 200A capacity handles heavy loads in rental properties or industrial sites.
Pros
- Revenue grade accuracy
- UL CTEP certification
- Cloud metering available
- 200A capacity
- Factory calibration
Cons
- Expensive kit price
- Indoor use without enclosure
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It conforms to ANSI C12.1 and C12.20 standards, ensuring high precision. The RS485 port connects to monitoring systems, and cloud reports support time-of-use billing. Split core CTs allow flexible installation.
The high cost may be prohibitive for small residential users. Without the watertight enclosure, outdoor use is limited. However, for professional applications, the accuracy and features are unmatched.
Property managers needing compliant billing data should consider this meter. Its robust design and cloud integration make it a top-tier choice for serious energy monitoring.
Revenue-Grade Precision
The 0.5% accuracy and CTEP approval ensure billing data meets industry standards.
Cloud and Time-of-Use Billing
Access real-time data and monthly kWh reports via PC or phone with the cloud gateway.
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4. Series 2000 Single Phase Energy – Electric Sub Meter Review
Series 2000 Single Phase Energy
120/208/240V
200 Amps max
Outdoor rated
Compact design
This meter is built for durability, featuring a robust enclosure rated for outdoor installations. With 200 Amp capacity, it suits commercial or light industrial settings. Its 120/208/240V compatibility offers broad voltage support.
Pros
- Robust outdoor enclosure
- Up to 200 Amps
- Flexible config options
- Space-saving size
Cons
- Lower user rating
- Less feature-rich display
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The compact design saves space in panels, and flexible configurations (1PH, 2W, 3W) adapt to various systems. Clear labeling aids installation. However, it lacks advanced communication features like Modbus.
The 3.2 rating suggests some users faced issues or found features limited. It is less detailed than digital competitors. For simple, rugged needs without networking, it serves adequately.
Choose this if you prioritize durability over advanced data tracking. It works well for basic sub-metering where simple kWh readings are sufficient.
Durable Outdoor Installation
The robust enclosure withstands outdoor conditions, making it suitable for exterior meter boxes.
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5. DAE DEM730P Electric kWh – Electric Sub Meter Review
DAE DEM730P Electric kWh
120/240V input
50A internal CT
RS485 interface
IEC61036 standard
With a 4.4-star rating, this meter simplifies installation with internal current transformers. It connects to cloud gateways for remote monitoring via RS485. Conforming to IEC standards, it ensures reliability for small panels.
Pros
- Internal CT for ease
- RS485 communication
- Cloud gateway ready
- Compliance with standards
Cons
- Indoor use only
- 50A current limit
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The 50A limit suits lower-load circuits like workshops or light commercial units. Indoor use only requires a separate enclosure for outdoor placement. Setup is straightforward with provided wiring diagrams.
While limited to 50A and indoor use, it is effective for small-scale sub-metering. The cloud support adds value for property managers needing remote data access.
Consider this for smaller applications where internal CTs reduce wiring complexity. It is a solid choice for indoor monitoring.
Simplified Internal CT Setup
Internal current transformers eliminate the need for external CTs, reducing wiring time.
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6. DAE P254-200-S KIT – Electric Sub Meter Review
DAE P254-200-S KIT
3 Phase 200A
120-480V voltage
UL CTEP listed
RS485 ready
Designed for three-phase systems, this meter handles up to 480V and 200A. With UL CTEP approval, it is suitable for commercial billing. The RS485 port and cloud options enable advanced monitoring.
Pros
- Three-phase capability
- 480V compatibility
- Revenue grade accuracy
- Cloud ready
Cons
- High price
- Complex installation
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It works for both 3-wire and 4-wire setups, offering flexibility for industrial panels. The accuracy matches the P153 series but in three-phase. Indoor use requires enclosure for outdoors.
The cost and complexity are higher than single-phase units. However, for facilities needing three-phase metering, it delivers certified accuracy.
Ideal for industrial or multi-phase commercial sites, this meter ensures compliance and detailed tracking.
Three-Phase Support
Supports both 3-wire and 4-wire configurations for versatile three-phase panel metering.
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7. Single Phase kWh Meter Pass-Through – Electric Sub Meter Review
Single Phase kWh Meter Pass-Through
120/240V 3-Wire
100A capacity
Pass-through design
Pulse output
This pass-through meter is built for simplicity, with direct wiring for 120/240V systems. Rated up to 100A, it fits panels needing straightforward tracking. The pulse output allows remote data logging.
Pros
- Pass-through wiring
- Supports 2 or 3-Wire
- Up to 100A
- Local or remote read
Cons
- Manual wiring required
- Basic display features
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It adapts to 2-wire or 3-wire configurations, offering flexibility. The LCD displays readings locally, but lacks advanced communication. It is a solid choice for basic needs.
The lack of Modbus or cloud features limits advanced users. However, for passive tracking without setup complexity, it performs well.
Recommended for simple residential or workshop sub-metering where easy installation is priority.
Flexible Wiring Options
Supports both 2-wire and 3-wire single-phase systems for broad compatibility.
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8. DAE DDM730 KIT – Electric Sub Meter Review
DAE DDM730 KIT
120/240V 1P3W
100 Amp capacity
Internal CT design
Din Rail mount
Rated 5.0 stars, this meter excels with internal CTs and Din Rail mounting. It tracks whole panel usage for 120V and 240V circuits. Cloud integration options make it easy for landlords to monitor remotely.
Pros
- Perfect rating
- Din Rail mounting
- Cloud metering ready
- Internal CT included
Cons
- Indoor use only
- Neutral not metered
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It monitors hot wires without connecting neutral, simplifying wiring. The cloud gateway support provides detailed reports without IT expertise. Conforming to IEC standards, it ensures reliability.
Indoor use requires separate enclosure for outdoor. Neutral is not measured, which is standard for this design. Overall, it balances ease and functionality perfectly.
Top choice for modern indoor sub-metering where Din Rail and cloud data are needed.
Din Rail Convenience
Standard Din Rail mounting makes panel integration quick and secure for installers.
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9. Universal Single Phase kWh Meter – Electric Sub Meter Review
Universal Single Phase kWh Meter
120/240V 3-Wire
100A capacity
2 or 3-Wire
Pulse output
This universal meter fits 2-wire or 3-wire setups, offering broad compatibility. Rated for 100A, it handles most residential loads. The pulse output allows connection to external monitors.
Pros
- Universal compatibility
- Up to 100A
- Pulse output
- Solid design
Cons
- No communication port
- Basic display
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It lacks advanced communication, focusing on reliable basic tracking. The LCD provides local readings, sufficient for simple sub-metering. Durable construction ensures long-term use.
Advanced users may miss Modbus support. However, for straightforward kWh tracking, it is dependable and versatile.
Choose this for generic single-phase needs where wiring flexibility is key.
Universal Wiring Support
Adapts to various single-phase wiring configurations without special adapters.
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10. E-Mon D-Mon E10-3208100-JKIT – Electric Sub Meter Review
E-Mon D-Mon E10-3208100-JKIT
Class 1000
100A capacity
1 or 2 Phase
120/208-240 Volt
With a Class 1000 rating, this meter supports 1 or 2-phase systems. It is suited for higher-end commercial applications. The brand is established, and 100A capacity handles robust loads.
Pros
- Class 1000 rating
- 100A handling
- 1 or 2 Phase
- Established brand
Cons
- Higher price
- Limited details
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It fits 120/208-240V, offering flexibility. However, detailed features are less described compared to others. It is a solid option for specific industrial needs.
Limited public data on communication features. Price is high, but quality is expected from the brand.
Consider for specialized commercial needs where brand reliability is paramount.
Commercial Grade Build
Class 1000 design ensures stability in heavier commercial electrical environments.
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Buying Guide – How to Choose the Best Electric Sub Meter
Selecting the right electric sub meter depends on your specific voltage, load, and monitoring needs. This guide outlines key factors to help you match a model to your system.
Voltage and Phase Compatibility
Ensure the meter supports your system voltage, such as 120/240V or 480V, and matches single or three-phase requirements. Mismatched voltage can lead to inaccuracies or damage.
Always verify the input range and phase configuration before purchase.
Amperage Capacity
Check the maximum current rating (e.g., 50A, 100A, or 200A) to ensure it handles your load. Under-rated meters may fail under high demand.
Select a capacity slightly above your expected maximum usage.
Accuracy and Standards
Look for revenue-grade accuracy (like 0.5%) and certifications such as ANSI CTEP for commercial billing. Accuracy ensures fair billing and reliable energy tracking.
Certified meters provide trust for tenant invoicing.
Communication and Integration
Decide if you need local readings only or remote access via Modbus, RS485, or cloud gateways. Advanced features support centralized management.
Choose communication options based on your monitoring complexity.
Installation and Wiring
Consider whether the meter uses socket bases, DIN rail, or pass-through wiring. Internal CTs simplify wiring, while external CTs offer flexibility.
Match the installation method to your panel and skill level.
Environmental Protection
If installing outdoors, ensure the meter or enclosure is weather-rated. Indoor-only models require protection against moisture and temperature.
Use appropriate enclosures for durability in harsh conditions.
Display and Readability
Bright backlit LCDs make it easy to check readings in dim spaces. Ensure it shows key data like kWh, voltage, and current.
Clear displays reduce monitoring effort.
Budget and Total Cost
Balance initial cost with long-term value. Premium models with cloud features cost more but offer better tracking for multiple units.
Set a budget that aligns with your tracking needs.
How to Use and Care for Your Electric Sub Meter
Install the meter according to manufacturer instructions, ensuring correct wiring for line, load, and neutral. Use labeled terminals to avoid confusion.
Power on and check the LCD for initial readings. Verify that the pulse or Modbus outputs are active if using remote monitoring.
Regularly clean the display and inspect the enclosure for damage. For outdoor models, ensure seals remain intact to protect circuitry.
Frequently Asked Questions
What is an electric sub meter?
An electric sub meter measures energy consumption for a specific circuit or tenant separately from the main utility meter. It helps landlords charge accurate bills based on actual usage.
Do sub meters need an internet connection?
Not all sub meters need internet. Basic models show readings on an LCD. Advanced ones with cloud gateways require Ethernet or wireless connections for remote access.
Can I use a sub meter for solar tracking?
Yes, many sub meters support import/export tracking to monitor solar energy flow. Look for bidirectional features or reverse LED indicators.
What does ANSI Form 2S mean?
ANSI Form 2S refers to a standard meter socket configuration with four jaws. It ensures compatibility with many residential meter bases.
How do I connect Modbus communication?
Connect Modbus via RS485 terminals to a gateway or logger. Configure the address and parameters using the meter's interface or software.
Are internal CTs better than external CTs?
Internal CTs simplify wiring but limit capacity. External CTs offer flexibility and higher capacity but require additional installation steps.
Can sub meters be used outdoors?
Only models with weather-rated enclosures should be used outdoors. Indoor units need protective boxes to prevent moisture damage.
How accurate are electric sub meters?
Most residential sub meters are accurate within 1% or better. Revenue-grade models meet 0.5% accuracy for billing compliance.
Final Thoughts on Choosing the Best Electric Sub Meter
We reviewed ten top electric sub meters suitable for landlords, solar owners, and facility managers. The Digital Electric Sub Meters for Landlords offers the best budget value, while the Digital Electric Sub Meter CL200 leads in features.
Consider your voltage, load, and need for remote data when choosing. Cloud-ready models simplify management, while simple meters suit basic billing needs.
Prices and availability change frequently. Always verify specifications and current offers on the product page before ordering.