General: HaiLin room thermostats are designed to control the fans, valves, dampers or electric heaters in fan coil units and gas, oil, electric and heat pumps, floor heating applications. Features * Room temperature, setpoint setting * Surface mounting/Flush mounting/Wireless/Touch screen * 24V,220V,110V,2AA-battery power supply * Programmalbe/ non-programmable * Network/non-network * Cool, Heat and Ventilation * Digital LCD display * Blue backlight/ Green backlight * Manual/ Auto three-speed fan switch * Flexible parameter setting * Variable optional function avaliable * CE certificated. * Easy installation * Easy to use