The Weathermatic RFS5 is a Wireless Rain Freeze Sensor. Rain Freeze Sensor shall be wireless in design using bi-directional communication. Rain Freeze Sensor shall have integrated on-site sensors for rain-shut off and freeze shut-off. Rain Freeze Sensor shall have an integral mounting bracket with a two-point articulating arm made from aluminum. Rain Freeze Sensor shall be suitable for outdoor mounting in commercial or residential environments. Rain Freeze Sensor shall be capable of two-way communications with the ProLine and SmartLine controls and have independent power supply, self-diagnostic circuit and microprocessor.