1.Size is 32mm x 11mm x 20mm.

2.Main chip: LM393, moisture-sensing probe.

3.Working voltage: DC 3-5V.

4.With the output instruction, active-low, the output light.

5. Single output, response time 10s.

6.The humidity output valid signal is low, sensitivity adjustable.

7.Widely used to detect humidity, rain and other occasions, the output TTL level signals.

8.with mounting holes for easy permanent installation.

9.the output switch circuit board can be connected directly to microcontroller IO port.