| CPU | ESP-Shelly-C38F |
| Flash | 8 MB |
| 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 |
| Housing material | Plastic |
| Ambient temperature | -20 °C to 40 °C / -5 °F to 105 °F |
| Humidity | 30 % a 70 % HR |
| Glow wire temperature | 750°C |
| Degree of contamination | 2 |
| Forced cooling required | No |
| Communication | WiFi 2.4 GHz Bluetooth 4.2 |
| Power supply | 220 - 230 V~ 50/60 Hz |
| Energy consumption | < 1W |
| Rated impulse withstand voltage | 2500 volts |
| Output circuit classifications | |
| Maximum switching voltage | 230 V~ |
| Maximum switching current | 12A |
| Maximum output power | 2500 W (resistive load only) |
| Number of switching cycles | 10000 |
| Overvoltage category | II |
| Type of service | S1 |
| Switch type | Single-handed |
| Switch configuration | SPNO (single-pole, normally open) |
| Type of circuit disconnection | Micro |
| Internal temperature sensor | Yes |
| Voltmeter (AC) | Yes |
| Ammeter (AC) | Yes |
| Power and energy meters | Yes |
| Communication | WiFi 2.4 GHz Bluetooth 4.2 |
| Webhooks (URL actions) | 20 with 5 URL per hook |
| Script | Yes |
| TMTQ | Yes |
| CoAP | No |
| Dimensions | 44 x 44 x 70 mm |
| Weight | 93 g |