This is a Raindrop Sensor is a tool for detecting rain. It is made up of two modules: a rain board that detects rain and a control module that compares and converts the analogue value to a digital value. Raindrop sensors are used in the automotive industry to automatically control windscreen wipers, in agriculture to detect rain, and in home automation systems.
*Note: Product Image are shown for illustrative purposes only and may different from the actual product.