

Overview
The SONOFF BASIC-1GSP is a Matter over Wi-Fi switch for high-power circuits, built to clip onto a 35 mm DIN rail inside your distribution board. It suits heavy loads such as water heaters, underfloor heating, heat pumps, EV chargers and pool pumps.
It breaks both live and neutral, logs energy use for each circuit, and can disconnect power automatically once limits you set have been exceeded.
- At a glance
- Brand
- SONOFF
- Model
- BASIC-1GSP
- Model
- BASIC-1GSP
- Protocol
- Matter over Wi-Fi, 2.4 GHz
- Max load
- 32A / 7680W
What it does
Rated up to 32A / 7680W, for demanding circuits beyond the reach of plug-in switches
Records voltage, current, power and cumulative energy, with history from daily views to 180 days, plus data export
Double-pole switching for full isolation when off
Editable overload limits for voltage, current and power
Matter certified for Apple Home, Google Home, Alexa, SmartThings and Home Assistant
2.4 GHz Wi-Fi control, both on the local network and remotely via the eWeLink app
Specifications
From the manufacturer's data. Check the label on the device if your installation depends on a rating.
| Model | BASIC-1GSP |
|---|---|
| Protocol | Matter over Wi-Fi, 2.4 GHz |
| Max load | 32A / 7680W |
| Voltage | 100–240V AC, 50/60 Hz, which covers Kenya's 240V mains |
| Switching | double-pole (live and neutral) |
| Energy monitoring | voltage, current, power, energy (kWh) |
| Mounting | standard 35 mm DIN rail |
| Size and weight | 84 × 66.5 × 18 mm, 92.1 g |
| Operating temperature | −15 °C to 50 °C |
Before you install
- Fit it behind a suitable upstream MCB or RCBO matched to the circuit's rating.
- Professional fitting is advisable.
- Anything wired into mains power should be fitted by a qualified electrician.


