DC 3.2-30V Green Light Mini Digital Voltage Panel Meter

About the product
1. Display panel: 22.5mm x 14mm
2. Total length: 31mm (Including mounting ears)
3. Thickness: 12mm
4. Mounting hole center distance: 27mm
5. Mounting hole diameter: 2.5mm
6. Measure voltage: DC 3.2-30V (2-wires access, red: positive; black: negative)
7. Supply voltage: DC 3.2-30V (collinear)
8. Measurement accuracy: 0.5% (+/- 1 digit)
9. Display: Three 0.36 inch digital LED Tube
10. Refresh rate: about 500mS/times
11. Operating temperature: -10- 65C
12. Reverse polarity protection
13. Used for car/battery car/motorcycle, or other voltage measure