The Hydreon RG-9 Solid State Rain Sensor is a rainfall sensing device intended to detect and communicate when a pre-selected rain intensity has been reached or exceeded. The RG-9 is rugged, reliable, and maintenance-free. Please Note : This Hydreon RG-9 only works with the Lunatico AAG CloudWatcher – Hydreon Rain Sensor Version. . The RG-9 uses beams of infrared light within a plastic lens about the size of a tennis ball. The round surface of the lens discourages the collection of debris, and the RG-9 has no moving parts to stick, and no water-pathways to clog. The device features an open-collector output that indicates when the selected rain intensity has been reached. The sensitivity levels are: Rain Drops, Very Light, Medium, Heavy. The duration of the positive detection is also selectable: No Hold, Hold Time 5 Minutes, Hold Time 10 Minutes, Hold Time 15 Minutes. The power consumption of the RG-9 is very low, and the device is well-suited to solar-power applications. CloudWatcher with anemometer and Hydreon rain sensor
