เซนเซอร์น้ำฝน ความชื้น วัดระดับน้ำ rain/water detection sensor module

Specification: • Voltage: 5V • Power indicator light, the output signal LED indicating lamp. • TTL level output, TTL output signal for low level drive capacity of around 100MA, can directly drive the relay, a buzzer, a small fan, etc. • Sensitivity adjustment via potentiometer • Control panel board size: 3*1.6 mm • A large area of raindrop detection board: 5.4*4.0 mm