This Arduino compatible rain sensor module is suitable for an Arduino weather project. It can be used to detect rain. Featuring adjustable sensitivity and LED indicator, It can be separated into a sensor and control board in order to keep the important bits dry.
TTL level output can drive 100mA - adequate for a small relay or buzzer.
5V power supply required.
Dimensions (board): 50 x 35 x 1mm
Dimensions (controller): 47 x 26 x 6mm
Dimensions (wire): 75mm