Feature: 1. HIGH RESOLUTION MEASUREMENT: Adopt 1KHz sine wave constant current circuit, high resolution battery internal resistance measurement for 0.01mΩ 2. DATA COMPARISON FOR QUICK SCREENING: Battery internal resistance voltmeter has data comparison function, which can be used for quick battery screening 3. WITH RELATIVE MEASUREMENT: Battery internal resistance meter support relative measurement function, which can be used to remove lead resistance 4. BACKLIT LCD SCREEN: Battery internal resistance tester come with large screen backlit LCD display, easier to read and measure 5. WIDE APPLICATION: Widely used in auto repair, electric motorcycles, electric bicycles, various batteries, rechargeable battery inspection Specification: Item Type: Battery Internal Resistance Voltmeter Model: SM8126A Material: ABS Plug: US Plug AC 100-240V Uses: Widely used in auto repair, electric motorcycles, electric bicycles, various batteries, rechargeable battery inspection Battery: 4 x 14500 lithium battery 3.7V 800mAh Basic Parameters: Measuring Range: Internal Resistance: 0.04mΩ~100Ω Voltage: 0.00V~50V Temperature: -20.0℃~180.0℃ (-4℉~356℉) Maximum Error: Internal Resistance: ±(4%+2 characters) (valid for 0.1% of full scale) Voltage: ±(2%+1 character) Temperature: ±(2%+1 character) Resolution: Internal Resistance: 0.01mΩ (100MΩ), 0.1mΩ (1000MΩ), 0.001Ω (10Ω), 0.01Ω (100 Q) (valid for 0.1% of full scale) Voltage: 0.01V Infrared Temperature: 0.5℃ (1.0℉) distance Object Distance Ratio: D:S = 20:1 Use Environment: Temperature: 0℃~40℃ Humidity: 70% Relative humidity. Package List: 1 x Host1 x Test Clip1 x Electrode Head1 x Charger4 x Matching Battery1 x Accessory1 x Plug1 x User Manual1 x Storage Box Note: Please follow the product instruction manual in detail to avoid reducing the service life of the product.