This is a test and maintenance instrument suitable for various brands of air conditioner variable frequency compressors. It adopts a color screen display function, and the information transmission is more intuitive; the stepless speed knob design is easy to operate and detect, and it has an automatic protection function, which makes you feel more at ease. Maximum Detection 5P Inverter Air Conditioning Compressor. Product name: Air conditioner variable frequency compressor tester Maximum input current: 10A, 15A, 25A Display function: Yes Plug Type:US Plug, it applies to Canada, India, Mexico, Thailand, Taiwan, the United States, the Philippines and so on. / EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. Voltage:AC100-240V Color:White Material:Metal Package Contents: 1 * Variable frequency air conditioner compressor tester 1 * adapter 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.