| General |
| Type | Value |
| Electrical |
| Power supply | 1x 3 V CR2032 battery (included) |
| Battery life | 5 years |
| Environmental |
| Ambient temperature | -20 °C to 40 °C / -5 °F to 105 °F |
| Humidity | 30 % to 70 % RH |
| Firmware capabilities |
| Schedules | |
| Webhooks (URL actions) | |
| Scripting | |
| MQTT | |
| Encryption | |
| MCU |
| CPU | EFR32MG27 |
| Flash | 768 kB |
| Other |
| Supported Devices | Shelly Plus / Gen3 / Gen4 series Shelly Pro series |
| Physical |
| Size (HxWxD) | 35x35x7 mm ±0.5 mm / 1.38х1.38х0.27 in ±0.02 in (Sensor unit) 35x12x7 ±0.5 mm / 1.44х0.47х0.27 in ±0.02 in (Magnet) |
| Weight | 10 g ±1 g / 0.35 ±0.05 oz (Device with the battery) 8 g ±1 g / 0.28 ±0.05 oz (Magnet) |
| Shell material | Plastic |
| Color | White, black, brown |
| Radio |
| RF band | 2402 - 2480 MHz |
| Max. RF power | <8 dBm |
| Bluetooth Protocol | 5 (LE) |
| Bluetooth Range | Up to 10 m / 33 ft indoors and 30 m / 100 ft outdoors , (Depends on local conditions) |
| Sensors |
| Reed switch | |
| G-sensor | |
| Light sensor | |
| Zigbee |
| Protocol | 802.15.4 |
| RF band (Zigbee) | 2405 to 2480 MHz |
| Max. RF power (Zigbee) | < 8 dBm |
| Range | Up to 10 m / 33 ft indoors and 30 m / 100 ft outdoors , (Depends on local conditions) |