| CPU | ESP-Shelly-C38F |
| Flash | 8 MB |
| Relay | Contact NA, 1 pole, contact µ |
| External protection | 16A |
| Power supply | 110 - 240 VCA |
| Energy consumption | < 1,2W |
| Measuring voltage max | 240 V ~ 30 V |
| Max. measuring current | 16A |
| Maximum AC measuring power | 3840 watts |
| Power measurement | Yes |
| Voltage protection/short-circuit protection | No |
| Current protection/Cutting | No |
| Maximum power/short circuit protection | No |
| 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 |
| Script | Yes |
| MQTT | Yes |
| Encryption | Yes |
| Dimensions | 29 x 34 x 16 mm |
| Weight | 13 g |