| Bluetooth |
| Protocol (Bluetooth) | 4.2 |
| RF band (Bluetooth) | 2402 - 2480 MHz |
| Electrical |
| Power supply | 220 - 230 V~ 50/60 Hz |
| Power consumption | < 1 W |
| Rated impulse-withstand voltage | 2500 V |
| Environmental |
| Ambient temperature | -20 °C to 40 °C / -5 °F to 105 °F |
| Humidity | 30 % to 70 % RH |
| Max. altitude | 2000 m / 6562 ft |
| Glow-wire temperature | 750°C |
| Pollution degree | 2 |
| Required forced cooling | |
| Firmware capabilities |
| Webhooks (URL actions) | 20 with 5 URLs per hook |
| Scripting | |
| MQTT | |
| CoAP | |
| Max. RF power: |
| Range | Up to 30 m / 98 ft outdoors, up to 10 m / 33 ft indoors (depending on local conditions) |
| Microcontroller unit |
| CPU | ESP-Shelly-C38F |
| Flash | 8 MB |
| Output circuits ratings |
| Max. switching voltage | 230 V~ |
| Max. switching current | 12 A |
| Max. output power | 2500 W (resistive load only) |
| Number of switching cycles | 10000 |
| Overvoltage category | II |
| Duty-type | S1 |
| Switch type | One-way |
| Switch configuration | SPNO (single-pole, normally-open) |
| Type of circuit disconnection | Micro |
| Physical |
| Size (HxWxD) | 44x44x70 ±0.5 mm / 1.73x1.73x2.75 ±0.02 in |
| Weight | 60 ±1 g / 2.08 ±0.04 oz |
| Compatible sockets | CEE 7/1, CEE 7/3 (Type F / Schuko) or CEE 7/5 (Type E) |
| Compatible plugs | CEE 7/2, CEE 7/4 (Type F / Schuko), CEE 7/7, CEE 7/16 (Type C) or CEE 7/17 |
| Shell material | Plastic |
| Color | White Black |
| Sensors, meters |
| Internal-temperature sensor | |
| Voltmeter (AC) | |
| Ammeter (AC) | |
| Power and energy meters | |
| Wi-Fi |
| Protocol | 802.11 b/g/n |
| RF band | 2401-2473 MHz |
| Max. RF power | <10 dBm |