Features Advanced Micro-controller based Available in LED or 16x2 LCD Diplay. Four soft touch ON/OFF action key for Blower, UV, Lamp & Socket. Two digital reed inputs for sash window indication. Inbuilt UV Hour meter with RESET option. Blower speed controlling in m/s or fpm.(Optional) Sash sliding window UP/DOWN control. Easy to installation& user friendly wiring. Soft touch Membrane keypad. Supply : 90 to 260 VAC @ 50 Hz