Sarru Automation CC21 desert air cooler remote controller provides 10 steps 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. 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. 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. 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 is max. 300 watt and water pump maximum capacity is 100 watt at 230V, 50Hz. All functions like fan speed, pump settings, timer value , sleep mode value are shown on display.