1.Use a 3.5 inch LCD display screen （operation interface）and a 3 inch milliampere meter（display current）,it’s easy to operate and read the information.
2.Large capacity chargeable lithium-ion battery,portable,suitable for indoor and outdoor、laboratory、substation and so on.
3.Test the leakage and function of count,the two function can be switched optionally,comprehensive,easy to operate.
4.2 grade Surge voltage（high/low voltage） change by a button,the current adjust by a rotary knob,easy to operate.
5.The charge plug adopt 6 pin aviation plug,it’s more reliable,if fully charged,the instrument can work more than 8 hours.
6.Small in size、light weight、high precious and easy to use.
