🪫 Powersensor is not currently compatible with home battery systems.
The DIY Solar Power Monitor
Powersensor Solar is a comprehensive home and solar energy monitoring system. It gives you detailed insights that your solar inverter or electricity bill can't offer.
Easy Installation. It's the only solar energy monitor you can install yourself without an electrician.
Realtime Updates. Instant access to solar production, self-consumption, and grid export.
Energy Insights. See exactly how much power you use, produce, and export, by the hour, day, week, or month.
Reduce Costs. Detailed cost tracking helps you optimise your energy use.
Expandable. You can add up to eight extra Plugs and Sensors to track individual appliances.
The app guides you through setup step by step, including exactly where to place each sensor.
Check if You Have Single, 2 or 3 Phase Power
At your meter board or switchboard, check the 'Main Switch' to identify your installation type.
Single Phase (single-pole) on the left vs. 3 Phase (three-pole) on the right. 2 Phase is less common and uses a two-pole switch.
How It Works & Where Everything Goes
The system has four parts: Sensor, Optical Reader (3-phase only), Plug, and the App.
The Sensor, Optical Reader (three-phase only), Plug, and App.
The Sensors are wireless, battery-powered, and rechargeable. They measure the magnetic field of electrical flow without touching any wires. You don't need to go behind the switchboard or clamp around cables, unlike with a CT clamp energy monitor. The main sensor sits near your electricity meter or service fuse. Optional extra sensors go on the conduit supplying a specific hard-wired appliance, such as an AC unit or hot water system, away from the switchboard.
The Optical Reader detects your digital meter's pulse light to help calibrate the main sensor at three-phase sites.
The Plug measures a key plugged-in appliance and helps calibrate the main sensor at single-phase sites. It also acts as the system's wireless gateway, relaying all sensor data to your home's WiFi and then to the internet.
The App provides instant access to your energy and cost data from anywhere.
Screenshot from the Powersensor Solar Monitor. See the images section above for more.
Specifications - Powersensor Solar Monitoring System
| Plug | Standard three-pin AU/NZ power plug and socket: 240 V AC 50Hz 10A. Uses less than 1W to operate. |
| Sensor | Weatherproof sensor with user-rechargeable battery. Battery lasts 1 to 2 years. USB charge cable included. |
| Wireless Range | Sensor to Plug: within 10m or two rooms, extend with an extra plug on the same WiFi network. Plug to router: up to 50m, extendable with a WiFi repeater or mesh. |
| Wireless Protocol | WiFi 2.4 GHz and Bluetooth |
| 3 Phase Compatible | Yes - choose the 3 Phase option |
| Home Battery Compatible | No |
| Tariffs | Full tariff control, including time-of-use, single fixed tariffs, daily usage charge, and seasonal rate adjustment. |
| Accuracy | Within 5%; typically better |
| Dimensions (L x W x D) | Plug: 9.9 x 4.3 x 3.8cm (excl. pins) Sensor: 9 x 4.2 x 3.2cm |
| Weight | Plug: 84 grams; Sensor: 96 grams |
| Installation | Easy app-guided self-installation |
| Product Identifiers | Powersensor Solar Plus (+) Single Phase and 3 Phase Solutions |
| Further Details | Quickstart Guides: Plug & Sensor (PDF) |
| Warranty | 2 Years |
Frequently Asked Questions
What's included in the kit?
The app guides you through installation for your specific kit.
- Single Phase: 2 x Sensors, 1 x Plug
- 2 or 3 Phase: 2 x Sensors, 1 x Optical Reader & Bracket, 1 x Plug
Also included are USB recharge cables, 3M Dual Lock Velcro pads, printed instructions, and a QR code to download the app. No extra tools are needed.
How many extra plugs or sensors can I add?
Up to eight extra sensors or plugs to track individual appliances or loads.
I'm still unsure if I have single-, two-, or three-phase power.
Read our guide on how to tell if you have three-phase power.
Can I access the app when I'm away from home?
Yes, from anywhere on the Internet; at home, the office, or overseas.
Does it work with multiple solar inverters?
No. Choose the Powersensor Energy solution instead. It tracks NET import/export from your main switchboard rather than each inverter individually.
How is this different to my old CT-clamp system (e.g. Efergy)?
Current Transformer (CT) clamp systems fit directly around the cable behind your switchboard. Powersensor uses external field sensing magnetometers instead, making it much easier to self-install.
How often do readings update?
Every 30 seconds.
Is the app free?
Yes, it's included with your device purchase.
Can I download my data?
Yes, as a .csv export. Data is stored half-hourly, including kWh, peak kW, and cost for Grid, Solar, and Net energy.
Does Powersensor integrate with Home Assistant?
Yes. Powersensor has an official Home Assistant integration, built and maintained by DiUS (the company behind Powersensor), enabling automations based on your live Powersensor data. It's available via HACS for easy setup. Powersensor also offers an open API with OAuth 2.0 authentication for anyone wanting to build custom integrations with other platforms.
When is Powersensor NOT recommended?
- Apartments/units - unless your meter board is fully accessible and within 10m of your home.
- Home battery systems - not yet supported.
- 3 Phase properties with multiple electricity meters (single-phase multi-meter sites are fine).
What other devices do you sell?
See our Powersensor page for extra plugs or sensors, or read our guide on monitoring your electricity usage.