Brand new in box - This electronic thermostat is perfect for those looking for precise temperature control in their home or office. With its 3-wire configuration, it can be easily installed in any heating or cooling system. The WS 4 model is programmable, allowing you to set schedules for when you want the temperature to change. The thermostat is ideal for use in programmable thermostats, thermostats, and other heating, cooling, and air systems. Its sleek and modern design fits in with any décor, making it a versatile addition to any space. Whether you need it for your home or office, the 3 wire electronic thermostat WS 4 is the perfect solution.