Description: Features 1 Use high quality materials with guaranteed quality2 Small size and exquisite appearance3 2 3 wire fan temperature control speed controller4 Support 0 2 2A current range fan5 Wide application rangeParameter Design power supply voltage DC12VVoltage range DC9 5 14 5V circuit working voltage please pay attention to the fan voltage range Circuit self consumption less than 70mA tested at 12V Fan current 0 2 2A control effect deteriorates below 0 2A Temperature measurement range 9 9 99 9 ℃Temperature measurement error within the range of 0 50 ℃ the error is less than 1 2 ℃ and in other ranges the error is less than 2 ℃ Circuit board size 70 19 11 length width height mm excluding protruding interfaces Default factory settings acceleration start temperature 30 ℃ full speed temperature 35 ℃ shutdown temperature 28 ℃ basic output 20Key Description Button and Switch the display during operation and increase the value during parameter setting long press to continuously increase or decrease The OK button has two functions 1 In working mode short press to enter the inherent output setting that is manual speed regulation setting with a range of 1 100 Short press again to save and exit 2 In working mode long press to enter the temperature parameter setting After entering use the and buttons to modify the parameters and short press the OK button to switch between the setting items Set the acceleration temperature