Youmile 5 pcs DC 5-100V Digital Voltmeter LED Digital Display Auto Voltmeter Car Voltage Detector Tester Monitor Accurate measurement with knob cap for Motorcycle Boat Truck Camper Caravan(Red)

• 【What it does】: This DC digital voltmeter can solve the problem of checking the voltage status of batteries and other equipment for you, and the wiring is convenient.
• 【Material】: This DC digital voltmeter is made of high-quality plastic and highly conductive needles, laser-etched patterns, not easy to fade, durable.
• 【LCD display】: The voltmeter has a three-digit LED digital display, the value is clear, the color brightness is soft, and it can be easily viewed even at a distance and at night.
• 【Reverse connection protection】: The voltmeter has a reverse connection protection function, even if it is reversed or wrongly connected, it can prevent the voltmeter from being burned.
• 【Widely Used】: The digital voltmeter head with wide measuring range is perfect for checking voltage, suitable for vehicles, cars, boats, motorcycles, RVs and caravans.

Product description This is a LED DC digital voltmeter head display for measuring voltage. It can capture the voltage state of the battery fully charged and discharged in time, with 3-digit LED digital display, which is often used in various automobiles and other various measurement scenarios Specifications Measuring range: 5V~100V Power supply range: 5V~100V Minimum startup: 3.8V Allowable error: plus or minus 1% Input impedance: more than 100K ohms Working current: red is less than 15mA, green is less than 12mA Refresh speed: about 300mS/time Display mode: three round LED digital tube Display color: red/green (optional) Working temperature: -10℃~65℃ Note: The input voltage should not be higher than 100V, otherwise it will cause burnout Package includes: 5 x DC 5-100V Digital Voltmeter(Red) 10 x Knob cap