Steam Sensor

This is a steam sensor from DFRobot.
SKU: SEN0121

Availability: 18 In Stock

  • Buy 10 for $1.85 each and save 8%
  • Buy 50 for $1.79 each and save 11%

Free Shipping on orders over $50
(USA Only)

Economy shipping for $5.99 (USA Only)
Or choose UPS or USPS Priority Mail.

International Shipping also available.

US Schools/School Districts can order by Purchase Order



This steam sensor can be connected to the Arduino IO Expansion shield directly. The output voltage will increase when the humidity on the sensor surface goes up.

Warning: The connector is not waterproof, please be careful not to put the connector directly in water.

Simple rain detector.
Cheap steam level switch.
Touch sensor based on humidity.


Steam sensor (1 unit).
Analog Sensor Cable (1 unit).

Additional Info

Additional Info


Power supply: 3.3v or 5v.
Output voltage signal: 0~4.5v(@5v) or 0~3.0v(@3.3v).
Pin definition:
Analog output(Blue wire), GND (Black wire), Power(Red wire),
Size: 30x20x6mm.

Data Sheets
Minimum Age No
Other SKUs No