Sell ☄0.28 inch 0.28 DC 0-100V Super Mini Digital Red Green Blue Yellow LED Car Voltmeter Voltage Volt P best price

This voltmeter has the smallest volume in the world, and the measuring range dc dc0-100v, 2-wire and 3-wire products are universal. It breaks the conventional voltmeter. Equipped with three connections, it is convenient to access the line in the car/battery car/motorcycle. It has the function of reverse connection protection. It can be used to monitor the voltage of the battery, master the voltage state of the battery in time, and can also be used for voltage measurement of other products. Note that the maximum input voltage of line 2 should not exceed 30V, otherwise there is a risk of burnout. Note: the three-wire voltage range is 0-100v, which can also be used as a second-line, but the voltage should be within 40V Technical parameters Line 2 operating voltage: 4.0-40v (with reverse connection protection function) Line 2 test voltage: 0.0~40V Line 3 operating voltage: 4.0-40v (with reverse connection protection function) Line 3 detection voltage: 0.0~100V Working current: <20mA Display mode: 0.28"LED, red blue green yellow (optional color) Installation dimensions: 30 * 11.7 * 9.2 mm long (wide high) Installation opening: 23 * 10 mm Measurement speed: greater than or equal to 200mS/ time Measurement accuracy: 3 Extreme working condition Low operating voltage: + 4.0v Maximum operating voltage: +40V Working temperature: - 10 ~ + 65 Working humidity: 10-80% (no condensation) Working pressure: 80 ~ 106kPa Sunlight exposure: no direct exposure Main features: 1. Good product stability and high measurement accuracy 2. The appearance is of standard size and easy to install 3. Protective circuit is adopted for power supply polar power supply