["Features:\r\nEquipped with 2 lead wires, easy for wiring(convenient for testing car, motorcycle, and battery cart);\r\nNo for extra power needed;\r\nHigh precision voltage meter, for DC 2.5V-30V measuring range;\r\nWith reverse wiring for protection and fine adjustment function;\r\n\r\nSpecifications:\r\nType: digital voltage meter\r\nMeasuring range: 2.4V-30.0V\r\nVoltage measurement error: 0.05V\r\nWorking current: <30 mA\r\nDisplay mode: 0.36\" LED\r\nRefresh rate: about 100ms/time\r\nLine length: 20cm/7.87\"\r\nDisplay color: red\r\nOperating temperature: -10 ~ 65℃\r\nProduct size: 35 x 20 x 20mm/1.38 x 0.79 x 0.79\"\r\nMounting hole size: 32 x 21 mm / 1.26 x 0.83\"\r\n\r\nNotes: \r\nWhen the voltage is below 3V, the display brightness will darken while not affecting the correct measurement.\r\nTesting voltage higher than 30V may damage the product."]