Description: 1. This voltmeter is 0.36 inch in volume, DC 0-100V, 2-wire and 3-wire products are universal. It breaks the conventional voltmeter. It can work directly in 5V, 9V, 12V, 24V circuits without voltage regulation. 2. Equipped with three wiring, easy access to the car/battery car/motorcycle internal line, with reverse connection protection function, wiring will not burn. 3. It can be used to monitor battery voltage and master battery voltage status in time. It can also be used for voltage measurement of other products. 4. Note that the maximum input voltage of line 2 should not exceed 40V, otherwise there is a risk of burnout. Feature: The product has good stability and high measuring accuracy. Standard size is adopted for appearance and easy installation. Polarity Protection Circuit for Power Supply. Specification: Working voltage: 4.0-40V (with reverse protection function) Detection voltage: 4.0-40V Working voltage: 4.0-40V (with reverse protection function) Detection voltage: 0.0-100V Working Current: <20mA Display mode: 0.36 "LED, red, blue and green (color optional) Measurement rate: > 320mS/time Measurement accuracy: 3% Input impedance: > 100K ohm Working current: red < 20mA Lead length: 15cm/5.9'' Outline size: 22.5*14.4*9mm/0.88*0.56*0.35'' excluding installation ears), including installation ear length 32.5mm Installation hole: central hole spacing 27.5 mm aperture: 3 mm Limit working conditions: Low operating voltage: +3.0V Maximum operating voltage: +40V Working temperature: -10-65℃ Working humidity: 10-80% (no condensation) Working Pressure: 80-106 kPa Sunshine exposure: no direct exposure Warm Tips: 1. The voltage range of three-wire is 0-100V, and can also be used as second-wire, but the voltage should be within 40V (many of the peers can only be within 30V). 2. Ultra-low start-up voltage when using two wires, red minimum 2.5V, green minimum 2.7V, blue minimum 3.0V. If conditions permit, the recommended voltage range DC 4V-30V is the best. Note: Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding.

1 X 0.36 inch LED Digital Voltmeter