8 Inch Inline Duct Fan with Wired Smart Controller 494 CFM

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. Parameter 8Inch/200 mm Speed Dimension 302*310*237 mm High/Medium/Low Power Supply 220~240V/50 Hz Current 0.54 amps H 0.52 amps M 0.49 amps L Power 128W H 125W M 123W L Speed 2450 RPM H 2200 RPM M 1950 RPM L Air Flow 840 m3 / h H 765 m3 / h M 690 m3 / h L Air Pressure 352Pa H 313Pa M 274Pa L Noise 63 dB H 59dB M 55dB L Net Weight 4