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It is a practical digital resistance meter. With small size， it is convenient to carry.Features:This upgrade ohm meter is ideal for testing resistance of many electronic device.It also can be used to measure the voltage of electronic cigarette.Made of ABS material， very durable.Small in size， light in weight， convenient to carry.Powered by 2 AA batteries(not included).Specifications:Resistance Range: 0-20ΩVoltage Range: 0-6VPower Supply: 2 * 1.5V AA Battery(not included)Item Size: 6.7 * 4.6 * 1.6cm / 2.6 * 1.8 * 0.6inItem Weight: 39g / 1.4ozPackage Size: 7 * 5 * 3cm / 2.8 * 2 * 1.2inPackage Weight: 44g / 1.6ozPackage List:1 * Resistance Tester(battery not included)