Air Speed Selection:three-speed engine with NMB ball bearing, more than 50,000 hours of operation.Press the high / medium / low button to select the speed.
Timer Set:Switch on the controller, short press the delay button once to delay 1min, and add 1 min every time you press the button, 30 minutes in total. Long press the delay button to cancel the timer function.
Temperature monitoring:switch with temperature sensor Always monitor the room temperature.
Shell:PC+ABS flame-retardant plastic
Note:This duct fan is with 0.8m power cord, no plug, need wiring. Controller is with 2.5 meter wire.