It is Two Wires Red/Green LED DC Digital voltage monitor,Measurement range DC 3.50 - 30.0V, It has Reverse polarity protection, small size, high efficiency, long term stable and reliable quality,easy installation and use . Application: Motorcycle, Car, E-bike, ATV, Scooter, and DIY etc.

Features:

• Variable precision: 10V below , resolution of  0.01 V; 10V above,resolution of 0.1 V
• Dimensions: 48 x 29 x 21.5 mm (L*W* H)
• Cutting size: 45.5 x 26 mm (L*W)
• Power supply: Don't need the power supply, direct use of the test voltage as a power supply
• The minimum input: 3.50V DC
• The maximum input: 30.0V DC
• Measurement range: DC 3.50 - 30.0V
• Measurement accuracy: +/- (0.5% + 2 Digit)
• Display mode: Three 0.56 LED digital tube
• Display color: Red/Green
• update rate: About 500 ms/time
• Lead wire length: 14 cm
• Operation temperature: -10 °c to 65 °c
• Protection: Anti-reverse protection
• Usage: Car / battery car / motorcycle battery voltage, and other forms of voltage measurement

Wiring:

• Red wire: Power Supply +,Measure Voltage +,(3.50-30.0V DC)
• Black wire: Power Supply -, Measure Voltage-

Note:

• Because the truck battery is fully charged voltage of about 28V. Especially when the truck starts immediately, the pulse interference is likely to damage the module. This meter does not fit 24V truck. So if you counter this situation, please select the 15-80V voltmeter.

 Package Included:

• 1x Digital Voltmeter