Name: Three-line and five-line universal detection. Rated voltage: 310V. Please carefully check the function of each wire of the fan plug and find the corresponding socket for insertion test Usually, for a five-wire DC fan, the red wire is 310V and the black wire is GND. White wire VCC (15v) Yellow wire speed control Blue wire FG (speed feedback) The function of each wire is marked on the fan nameplate. It is necessary to that the function of each wire is corresponding before power-on testing Wrong wiring burn the detector and the fan motor. Five-wire fan test method: the three-wire and five-wire switch and slowly turn the speed knob If the fan motor can gradually accelerate and the speed feedback frequency value displayed on the screen also increases accordingly It means that the fan motor is normal. If the motor does not rotate, the motor cannot adjust the speed, and the feedback frequency value displayed on the screen is abnormal The 310V light goes out. Any of the above situations indicates that the fan motor is faulty Three-wire DC fan detection method: out the three-wire five-wire switch and slowly turn the speed knob If the fan motor can gradually accelerate and the speed feedback frequency value displayed on the screen also increases, it means that the fan motor is normal. If the motor does not rotate, it is difficult to start, and the feedback frequency value displayed on the screen is abnormal, it means that the motor is faulty Installation guide not included, we strongly recommend you professional installation. Plug Type:US Plug,it applies to Canada, India,Mexico, Thailand, the , the Philippines,Taiwan and so on. Voltage:AC110V (Due to different batches, different angles and lighting, there are slight differences between the actual product and the picture, which not affect normal use) Color: As Shown Material: Plastic Package Contents: 1 * Detector 1 * Plug Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.