Ks0246 keyestudio EASY plug Steam Sensor

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Keyestudio EASY plug Steam Sensor


Keyestudio steam sensor is an analog sensor and can make a simple rainwater detector and liquid level switch. When humidity on the surface of the sensor goes up, the output voltage will increase.
Warning: The connector is not waterproof, please be careful not to put the connector directly in water.
The module can be connected to the analog input interface with only one line, which is very easy and convenient.


  • Connector: Easy plug
  • Working Voltage: 5V
  • Working Current: <20mA
  • Working Temperature: -10℃~+70℃
  • Interface Type: Analog Signal Output

Technical Details

  • Dimensions: 35mm*24mm*18mm
  • Weight: 4.6g

Connect It Up

Connect the EASY Plug steam sensor to control board using an RJ11 cable. Then connect the control board to your PC with a USB cable.

Upload the Code

Copy and paste below code to Arduino IDE and upload.

void setup()
Serial.begin(9600); //open serial port, and set baud rate at 9600bps
void loop()
int val;
val=analogRead(0); //plug vapor sensor into analog port 0
Serial.print("Moisture is ");
Serial.println(val,DEC); //read analog value printed on serial port 

What You Should See

When detect the different degree of humidity, the sensor outputs different value. If the sensor’s sensing area detects a water drop, the analog value will be displayed on monitor window.



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