Product Details Fangrui Product Details It Is A Portable Handheld Dc Milliohm Meter, It Uses 4 Wires Kelvin Clips To Do The Testing With High Precision And Short Start Time. It Is Designed For Diy User, Electronic Repair Personal, Technical School Education And Factory Etc. To Test Low Resistance Application. Portable And Handheld, Easy To Carry. Built-in Lithium Battery For Power Supply, Type-c Charging Port. 4 Wires Kelvin Clips With Higher Testing Precision. Built-in 3296 Potentiometer, User Can Do Self-calibration. 8888 Red Digital Tube Display. Automatically Reset To 0, No Need To Adjust To 0. Resolution:1m Measuring Range:1-1999m Testing Current:about 100ma Accuracy:(0.+2 Words) Open Circuit Output Voltage:less Than Equal 4.2vdc No-load Current Consumption:13ma Power Supply:3.7v 600mah Charging Port:type-c 5v 1a Charging Current:0.5a Charging Indicator:charging Red Led On, Charging Over Led Off Accessory:4 Wires Clips Resistance Testing Method:4 Wires Kelvin Clips Working Environment:10-35rh Less Than Equal Type:big Clip C