Description Voltage: 5V Have power indicator, output signal LED indicator. TTL-level output, TTL output valid signal is low, drive capacity at 100MA, can directly drive relays, buzzer, a small fan, and so on. Sensitivity adjustable via potentiometer The output is high LED light up when no rain, and vice verse. Raindrops board and the control panel is separate, convenient line leads. A large area of raindrops board, more conducive to rain detected. Board with positioning holes to facilitate installation Control panel board size: 3 * 1.6 MM The raindrop detection plate large area 5.4 * 4.0 MM Use guide, schematic, details pelase see on this page.
