| CPU | ESP-Shelly-C38F |
| Flash | 8 MB |
| Power supply | 110 - 240 VCA |
| Relay | Dry, contact NA, 1 pole, contact µ |
| Energy consumption | < 1,2W |
| External protection | 10A |
| Max. Voltage control | 110-240 V~24-48 V⎓12 V⎓ |
| Max. switching voltage | 240 V |
| Max. switching current | 8A |
| Communication | WiFi 2.4 GHz Bluetooth 4.2 |
| Mounting | Wall |
| Material | Plastic |
| Working temperature | -20°C to 40°C / -5°F to 105°F |
| Humidity | 30% to 70% of relative humidity |
| Range | Up to 10 m indoors and 30 m outdoors |
| Schedules | 20 |
| Webhooks (URL actions) | 20 with 5 URL |
| WiFi Range Extender | Yes |
| BLE Gateway | Yes |
| Script | Yes |
| MQTT | Yes |
| UDP | Yes |
| Dimensions | 29 x 35 x 16 mm |
| Weight | 19 g |