Grab'eM RAIN DROP/ WATER LEVEL Module(Blue)

The moisture sensor can be used to detect moisture, when dry, the module outputs a high level, whereas output low. Product description:1. The sensor uses the FR-04 high-quality double-sided materials, King Size 5.0 * 4.0CM, and with the surface of the nickel plating treatment, against oxidative, conductivity, superior performance and longevity;2. The comparator output, the signal is clean, waveform, driving ability over 15mA;3. Distribution bit to adjust sensitivity;4. Operating voltage 3.3V-5V5. The output in the form: digital switching outputs (0 and 1) and analog AO voltage output;6. A fixed bolt hole for easy installation7. Voltage: 5V8. Power indicator, the output signal LED indicator.9. TTL-level output, TTL output valid signal is low. Driving capability 100MA so, can directly drive relays, buzzer, a small fan, and so on.10. Sensitivity can be adjusted via potentiometer11. LED lights up when there is no rain output is high, raindrop up, the output ground level, LED light.12. Raindrops and control panels are separate, easy to wire leads.13. A large area of rain board, more conducive to detect rain.14. Board with positioning holes to facilitate installation15. Small board PCB size: 3.2cm x 1.4cm16. Wide voltage LM393 comparatorConnection mode:1, VCC: positive power supply (3-5V)2, GND: negative one.3, DO: TTL switching signal output4, AO: Analog signal outputPackage Including:100% Brand New1 x Rain sensing board1 x Control board