Product Features:
The Water Sensor is an easy-to-use, cost-effective water level/droplet identification detection sensor that measures the size of water droplets/volume of water by having a series of exposed parallel wire traces to determine the water level. Easy to complete the conversion of water volume to analogue signals, the output analogue value can be read directly by the development board to achieve the effect of water level alarm.

The working principle of the liquid level sensor:
Parallel exposed wires, divided into A, B two groups, the same group of wires are connected, the current from the B through the liquid conduction flow to the A, the exposed wires can sense whether there is liquid and the amount of liquid in contact with the size of the amount of the larger, then through the wires and finally reached the circuit of the current increases, and by the transistor into the corresponding changes in the analogue signal output. Through the external system to read the output analogue signal, you can know the corresponding changes in liquid level.

 Product parameters:

Working voltage: DC3-5V

Working current: less than 20mA

Sensor type: analogue

Detection area: 40mm x 16mm

Production process: FR4 double-sided spray tin + electronic components

Operating Temperature: 10℃-30

Operating humidity: 10%-90% non-condensing

Detection area: 40mm*16mm

Size (L*W*H): 62.0mm*20.0mm*8.1mm

Instructions for use:

"+" pin connected to the power supply VCC, "-" pin connected to the power supply GND, "S" pin analogue signal output can be connected to the AD converter or microcontroller AD converter pin

Attention: Correct wiring! Do not reverse the positive and negative connections, so that the board electronics burned!