Sarru CC61 Desert Air Cooler Remote Controller provides you 10 steps (0=off,1,2,3,4,5,6,7,8 and 9=full speed) different comfortable fan speeds regulation. You can also set water pump motor at different 6 pre-programmed duty cycles ON-OFF settings to control the humidity level. At 0= pump is continuous OFF, at setting 1=min ON and 4 min OFF..., at 2=2min ON and 3 min OFF..., at 3=3min ON and 2 min OFF..., at 4=4 min ON and 1 min OFF... & at5= continuous ON. This controller also provides you Sleep mode and ON/OFF timer. When sleep mode is turned ON the fan speed will be automatically reduce by 1 step in every 1 hour till it reaches to speed number 2. This function is very useful in night time. The timer can be set when system is in either ON or OFF condition. The timer value can be set in steps of 1 hour from 1 hour to 9 hours (1,2,3,4,5,6,7,8 and 9 ). Once set timer is over, cooler fan + water pump motor will automatically turn ON to OFF or OFF to reset ON. Controller keeps fan and pump settings stored in it’s memory even power goes away. System can be fully controlled by remote buttons as well as fan, pump and system ON/OFF can also by controlled by controller panel three switches. Remote range is more than 30 feet in line of sigh. Fan circuit load capacity max. 300 watt and water pump max. 100 at 230V, 50Hz. All functions like fan speed, pump settings, timer value , sleep mode value etc. are displayed on display. Very easy fitting and wiring. It saves electricity and water. Do not install this controller along with old wiring. Make sure to remove the old wiring of fan and water pump form the circuit. Connect wires of fan and water Pump directly to our controller and there should be no other wiring in-between. System is compatible only with pure sine wave inverter.