Specifications: Speed: 5 times/second Adjustment: Correction for resistance and voltage separately Basic accuracy:  Resistance: 0.5% Voltage: 0.5% Measuring ranges: Resistance: 0.0001m?~200? Voltage: 0.0001V~100V direct current Resistance ranges: 6 ranges automatic and manual Voltage ranges: 3 ranges automatic and manual Battery: 1 * lithium battery, 1000mAh (included) Package size: 180 * 90 * 35mm / 7.1 * 3.5 * 1.4in Package weight: 250g / 8.8ounce Packing list: 1 Tester 1 Set of 4-wire Probes\nThe battery internal resistance tester can measure the battery internal resistance and voltage at the same time. Wide applications: This product is widely used in various battery production, maintenance, testing, scientific research laboratories and other occasions. It can also be used to measure the AC resistance of resistors and low-resistance high- resistance. This tester adopts intelligent control and large display, also with built-in 1000mAh lithium battery to provide long service
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