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SHELLY - Temperature sensor add-on for Shelly Plus devices




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Add-on for your Shelly Plus 1/1PM, Shelly Plus 2PM, Shelly Plus i4/i4DC.

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Interface adapter for temperature probe type DS18B20 (5 probes max) or 1 humidity probe type DHT22 for Shelly Plus devices.

Measure and control with precision

Shelly Plus Add-on is a galvanically isolated sensor interface for all Shelly Plus relays. Use it to measure temperature and humidity using its 1-Wire terminals, or connect various analog and digital sensors for complex automation and higher efficiency. 

Highly compatible

Shelly Plus Add-on is compatible with most Arduino sensors! Use its digital or analog inputs to measure your desired parameters and create complex automation scenes based on the sensor data. 


  • Can be used with up to five DS18B20 sensors or one DHT22 sensor
  • Has an analog and a digital input
  • DHT22 sensor- if you want to monitor temperature and humidity
  • Compatible with Shelly Plus 1/1PM, Shelly Plus 2PM, Shelly Plus i4/i4DC


  • Power supply: 3,3 V (from Shelly Plus device)
  • Power consumption: < 0,5 W (without sensor)
  • 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 to 10 V
  • Voltmeter report threshold: 0.1 V
  • Dimensions: 37x42x15 cm
  • Weight: 105 g

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