Datasheet

5
Special Notice:
1) The top of probe is not water-proof; can only place the transparent part into
water.
2) Pay more attention to the power polarity when wiring. Avoid burning out the
sensor due to reversed connection. The voltage can only be DC5V; pay close
attention to the voltage to prevent overvoltage from burning the sensor.
Source Code
void setup() { // initialize serial communication at 9600 bits per second: