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In this guide
Electric sub meters allow property owners to track energy usage per tenant or circuit. Choosing the right one ensures fair billing and helps identify high consumption areas efficiently.
We evaluated ten top rated models based on accuracy, ease of installation, and compatibility with existing electrical panels. Our list includes options for residential, commercial, and solar applications.
Each pick highlights key features, pros, and cons to help you decide quickly. Prices vary by retailer and may change over time, so check current listings before buying.
Top 3 Picks for Best Electric Sub Meter
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Top 10 Best Electric Sub Meter in 2026 Compared
The table below provides a quick side by side view of each electric sub meter. It highlights voltage ratings, max amperage, and key communication options for easy selection.
1. Digital Electric Sub Meters for Landlords – Best Overall Electric Sub Meter
This digital energy meter is a top choice for landlords and RV owners. It scores 4.5 stars and fits standard ANSI Form 2S bases. The design is simple and reliable for daily use.
Pros
- Snap in install
- Accurate kWh data
- Supports Modbus
- Pulse output available
- Sealed housing
Cons
- Requires proper box
- Setup needs care
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It offers clear LCD readings for voltage, current, and total consumption. The pulse and Modbus outputs help you integrate with smart home systems or remote monitoring tools.
The reverse flow LED helps detect solar backfeed issues. However, you must ensure the housing is sealed properly in a box to protect the circuitry from moisture and dust.
Buy this if you need a reliable sub meter for rental units or workshops. It balances ease of installation with advanced data features for fair billing and energy management.
Easy Plug In Installation
The ANSI 2S 4 jaw fit allows you to snap the unit into the socket base. This saves time during upgrades for garages and RV pads.
Solar and Import Export Tracking
The reverse LED and dual direction tracking let you monitor solar systems effectively. You can see real time power flow without extra sensors.
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2. Digital Electric Sub Meter CL200 – Best Premium Electric Sub Meter
This model stands out for its RS485 Modbus communication and import export tracking. It holds a 4.8 star rating. It is ideal for professional energy management and solar setups.
Pros
- High accuracy rating
- Detailed multi parameter view
- Centralized data collection
- IR optical interface
- EEPROM data save
Cons
- Higher price point
- Advanced setup needed
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It shows voltage, current, power factor, and frequency on the display. The non volatile memory ensures you do not lose data during power interruptions. This is key for long term tracking.
The IR interface allows authorized configuration without opening the panel. But you need to connect an RS485 network for advanced data features. This adds complexity for simple DIY installs.
Choose this if you need detailed data for multi tenant buildings. Its professional features make it great for centralized monitoring and accurate billing reports.
Professional Data Integration
You can link multiple meters on one RS485 network. This helps you collect data from different units in a single gateway.
Solar and Grid Balance
The reverse current LED gives instant feedback on power flow. This helps you see when your system exports energy to the grid.
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3. DAE DDM730 KIT – Best Budget Electric Sub Meter
With a perfect 5.0 rating, this kit is a strong budget choice. It works with DAE cloud gateways for remote access. It fits standard din rail panels easily.
Pros
- Top user rating
- Internal CT simplifies wiring
- Cloud gateway support
- Affordable price
- Din rail mount
Cons
- Indoor use only
- Neutral not connected
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The internal CT allows you to monitor 100 amp circuits without external sensors. This reduces wiring complexity. It tracks whole panel usage for 120V and 240V circuits.
You must ensure indoor use or add a separate watertight enclosure. The neutral does not connect to the meter, which simplifies installation but requires proper panel wiring.
Pick this for small shops or rentals needing cloud billing. It delivers top rated performance at a low cost without sacrificing core features.
Simplified Panel Wiring
Only the hot wires pass through the meter. This design saves time and reduces the risk of wiring errors during setup.
Cloud Billing Access
Link it to a CC2030 gateway to see data online. This helps landlords send monthly reports to tenants quickly.
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4. DAE P153-200-S KIT – High Accuracy Electric Sub Meter
This kit is built for revenue grade tracking. It meets ANSI C12.1 standards and carries UL CTEP listing. The accuracy is around 0.5 percent for precise billing.
Pros
- California CTEP approval
- Supports time of use
- Factory calibration certs
- High amp capacity
- RS485 output
Cons
- Requires external CTs
- Complex for simple homes
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It supports time of use reports and cloud data collection. You can connect up to eight panels with the right gateway. This helps large properties manage usage.
The external CTs must be sourced separately for 200 amp circuits. The setup may be complex for basic residential needs. But it is worth it for large scale use.
Get this for commercial or multi unit buildings needing certified billing. Its high accuracy and TOU support make it ideal for property managers.
Certified Accuracy for Billing
The CTEP approval ensures the meter meets legal billing standards. This helps you avoid disputes with tenants or utilities.
Time of Use Tracking
It can log energy use at different times of day. This helps you understand peak usage and adjust pricing models.
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5. Series 2000 Single Phase Energy SubMeter – Robust Electric Sub Meter
This meter is built for tough environments. It has an outdoor rated enclosure and handles 200 amp loads. It fits 120, 208, and 240 volt systems.
Pros
- Durable enclosure
- Voltage flexibility
- Space saving design
- Clear labeling
- High amp capacity
Cons
- Low rating score
- Limited details online
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The compact design saves space in crowded panels. It is useful for small commercial setups. But the lower rating suggests users may face setup or reliability issues.
While it offers flexibility for voltage types, check recent feedback before buying. Some users may find the documentation limited. However, its build quality is solid.
Consider this for industrial spots needing voltage flexibility. It is a good option when you need high amperage and outdoor durability.
Wide Voltage Support
It works with 120, 208, and 240 volt supplies. This versatility makes it easier to use in varied building setups.
Outdoor Ready Build
The enclosure is designed to protect the unit in outdoor settings. Just ensure it is installed in a proper rated box.
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6. DAE P254-200-S KIT – 3 Phase Electric Sub Meter
This model supports 3 phase setups. It handles 200 amp loads and 120 to 480 volt systems. It has the same revenue grade accuracy as the single phase kits.
Pros
- Handles 3 phase power
- High voltage range
- CTP approval
- RS485 data
- High amp capacity
Cons
- Requires 3 CTs
- Complex wiring
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The RS485 output allows centralized monitoring. You can track multiple panels easily. This is key for industrial or multi unit buildings with 3 phase lines.
You must install three CTs for full phase monitoring. This adds cost and complexity. But it ensures accurate tracking across all three phases.
Buy this if you need to meter 3 phase power. It delivers certified accuracy and supports high voltage and amp needs.
3 Phase Compatibility
It measures power across all three lines accurately. This is essential for industrial loads or larger buildings.
High Voltage Range
It works from 120 up to 480 volts. This covers most commercial and industrial power setups.
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7. DAE DEM730P Electric kWh Submeter – Cloud Ready Electric Sub Meter
This unit offers cloud data via DAE gateways. It has an internal CT for 50 amp circuits. It supports RS485 for data logging.
Pros
- Cloud integration
- TOU billing reports
- Low amp for small circuits
- RS485 output
- Simple wiring
Cons
- Indoor use
- Limited to 50 amps
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You can use it to track tenant usage. The TOU reports help with time based billing. It is a good fit for smaller panels.
The 50 amp limit means it fits light loads. The outdoor enclosure is not built in so add one if needed. This keeps it simple for indoor use.
Use this for small workshops or units under 50 amps. It provides cloud access without needing external sensors.
Easy TOU Billing
The gateway generates time of use reports easily. This helps you offer tiered pricing to tenants.
Low Amp Circuit Focus
It is designed for circuits under 50 amps. This makes it ideal for smaller apartments or shops.
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8. Single Phase kWh Meter – Simple Pass Through Electric Sub Meter
This meter uses a pass through design. It handles up to 100 amps without CTs. It works with 2 or 3 wire setups.
Pros
- Pass through design
- Flexible wiring
- High amp rating
- Remote pulse read
- Local LCD view
Cons
- No comms listed
- Basic features
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You can read data on the LCD or use the pulse output. This is a simple choice for direct metering. It fits standard 120/240 volt systems.
The lack of advanced comms may limit remote tracking. But for local reading and basic pulse logging it works well. It keeps costs low.
Pick this for circuits under 100 amps needing simple metering. It is reliable for direct monitoring without complex networks.
Direct Pass Through
The wires pass through the unit without CTs. This cuts the cost and makes wiring easier.
Pulse Data Option
Use the pulse output to log to a counter. This helps you track usage over time.
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9. DAE DDM730 KIT – Cloud Electric Sub Meter
This kit is rated for cloud access with CC2030 gateways. It supports 100 amp circuits. The din rail mount simplifies installation.
Pros
- Cloud access
- Internal CT
- Easy wiring
- High rating
- Din rail fit
Cons
- Indoor only
- Gateway required
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The internal CT handles hot and neutral lines. You get real time data for billing. It works for 120V and 240V circuits.
Indoor use is required unless you add a weather proof box. The gateway adds cost but offers remote features. This makes it flexible for property management.
Use this for small panels under 100 amps needing remote data. It combines ease of use with cloud features for tenant billing.
Cloud Access for Tenants
Landlords can view data from anywhere. This helps you send monthly bills without manual reads.
Compact Din Rail Fit
It mounts directly to standard din rails. This saves space and keeps wiring tidy.
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10. E-Mon D-Mon E10-3208100-JKIT – High Class Electric Sub Meter
This model is rated Class 1000 for high precision. It supports 1 and 2 phase setups. It handles 100 amp loads well.
Pros
- Class 1000 rating
- High precision
- Supports 1 and 2 phase
- 200/240 volt
- Reliable brand
Cons
- Higher cost
- Limited details
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It works for 120/208/240 volt systems. This makes it flexible for small commercial units. The build is reliable for long term use.
The higher cost reflects the Class 1000 accuracy. You get very precise readings. But for basic needs a lower class may suffice.
Buy this for critical circuits needing exact data. It delivers high precision and supports varied phase and voltage needs.
High Class Precision
Class 1000 ensures extremely low error rates. This is great for billing or scientific setups.
1 and 2 Phase Support
It handles both 1 and 2 phase power lines. This offers more flexibility than single phase only units.
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Buying Guide – How to Choose the Best Electric Sub Meter
Choosing an electric sub meter requires looking at several factors to match your needs. This section helps you weigh key features before buying.
Voltage and Phase
Check if your panel uses 120, 208, or 240 volts. Some meters support only single phase while others handle three phase. Match the rating to your system to avoid errors.
Ensure the voltage range covers your panel specs.
Amperage Rating
The meter must handle the max current of the circuit. Common ratings are 50, 100, or 200 amps. Exceeding the rating can damage the unit.
Pick a meter that meets your panel amperage.
Connection Type
Some meters use ANSI Form 2S sockets while others use din rail mounts. Others need external CTs for high amps. Consider wiring effort before picking one.
Choose a connection type that fits your panel style.
Display and Readability
Look for a clear LCD with backlight for easy reading. Some models cycle through data like voltage and current. This helps you spot issues fast.
Pick a display that is easy to read.
Communication Options
Advanced models offer RS485 Modbus or pulse output. This allows remote tracking and cloud data. Simple units may lack these features entirely.
Select based on if you need remote data.
Billing Features
Some meters support time of use billing or cloud reports. This is key for landlords needing tenant data. Check if the system supports these reports.
Make sure it has the reporting you need.
Outdoor vs Indoor
Many meters are for indoor use only. If your panel is outside, use a rated box or a meter with outdoor housing. This protects against moisture.
Verify the enclosure matches your location.
Accuracy and Standards
Revenue grade units meet ANSI C12.1 or CTEP standards. These ensure high accuracy for billing. Basic meters may have higher error margins.
Choose high accuracy for tenant billing.
How to Use and Care for Your Electric Sub Meter
Turn off main power before wiring. Follow the diagram in the manual to connect line and load wires. Double check voltage ratings before turning it on.
Read the LCD or check data via gateway. For Modbus units connect the cables properly to your router. Ensure the gateway is online for remote data.
Check for dust or heat regularly. If used in a box keep the vents clean. Replace if accuracy drops or display fails.
Frequently Asked Questions
What is an electric sub meter used for?
An electric sub meter measures energy use for specific circuits or units. It helps landlords bill tenants fairly and track consumption per space. It is key for workshops or shared buildings.
Do I need external CTs for high amps?
Some meters include internal CTs for up to 100 amps. For 200 amp circuits you often need external CTs. Check the product specs before buying.
Can these meters track solar power?
Yes many models support import and export tracking. They show power flow to and from the grid. The reverse LED helps you see solar backfeed.
Are these meters outdoor ready?
Most units are for indoor use only. If installed outside add a weather proof box. Some have outdoor rated enclosures. Always check the manual.
How do I read data remotely?
Connect to a Modbus or cloud gateway. Many units support RS485 or pulse output. Use a gateway to send data to a web portal.
Is installation DIY safe?
Turn off main power before touching wires. Follow the diagram and use proper tools. If unsure hire a licensed electrician to avoid shocks.
Do these meters support time of use?
Some advanced units track time based usage. You need a gateway to generate TOU reports. Check if the model supports billing reports.
What is revenue grade accuracy?
Revenue grade means the meter meets high legal standards. It ensures billing is accurate to avoid disputes. Look for CTEP or ANSI C12.1 approval.
Final Thoughts on Choosing the Best Electric Sub Meter
Our top pick is the Digital Electric Sub Meters for Landlords for its ease of use and reliable data. It fits well in rental units and RV setups.
For budgets consider the DAE DDM730 KIT which offers cloud access at a lower cost. It is great for smaller panels needing remote billing.
Prices change often so check the links before buying. Compare features to your panel specs to ensure a perfect fit.