| Devices compatible with Shelly Plus Addon | Shelly Plus 1/1 PM Shelly Plus 2 PM Shelly Plus i4/i4DC |
| Temperature reading | Depends on the DS18B20 or DHT22 sensors |
| Humidity reading | Sensor dependent DHT22 |
| Digital input | -15 V to 0,5 V (True) / 2,5 V to 15 V (False)* |
| Analog input range | 0 to 100% |
| Analog input report threshold | 1%** |
| Voltmeter range | 0 at 10 V |
| Voltmeter report threshold | 0,1 V** |
| AC supply voltage | N / A |
| DC supply voltage | 3,3 V (from Shelly plus device) |
| Energy consumption | < 0,5 W (without sensors) |
| CCV max. Current | 10mA |
| OUTPUT VREF max. Current | 1mA |
| 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 |
| Dimensions | 37 x 42 x 16 mm |
| Weight | 105 g |