CH7400 Wireless Digital PTAC Thermostat and Base Module is a new energy saving solution for the hospitality industry and all other markets who use PTAC units. This weekly programmable PTAC thermostat designed to work on just about any PTAC brand.  It comes complete with a wall mounted digital thermostat and base module which easily plugs into most late model PTAC units. It offers affordable comfort contol for any room. It features low and high speed fan controls and a large temperature and set point display with model negative touch screen. It can be used with either a heat strip or heat pump PTAC.   Item No.: CH7400 A c-wire is required for all systems Works with two stages of heating and two stages of cooling (2H/2C) Works with Heat Only and Cool Only system  Works with Heat Pump (With or Without Aux) Works with Amazon Alexa, Google Assistant Remotely control your home comfort from your smartphone Using the free mobile app for Android and iOS devices. External Temperature Sensor