DC 0-30V 3 wire LED digital display panel volt meter voltage voltmeter car motor

Specification:
100% Brand new and high quality
Measuring range: DC 0V--30V
Optional Display Color: Blue/Green/Red
Display: three 0.56 "digital tube
Measurement accuracy: ±1%
Refresh rate: about 300mS / times
Input impedance: > 100KΩ
Operation Temp: -10℃-+65℃
Size: approx. 4.7 x 2.8 x 2.2cm (1.85''*1.10''*0.87'')
Cable length: approx. 20cm
3 colors have different working current & Input range
Input range: DC4.50-30.0V( red)/DC4.70-30.0V(green)/DC5.00-30.0V(blue) (Max Input: DC 30V. The device can be damaged if input is over 30V)
Working Current: red< 23mA,green< 18mA,blue< 13mA

Wiring:
Red: power supply +.
Black: power supply -, measure -.
White: measure +.

Package included:1 x digital voltmeter

Note:
Please allow 1-5mm errors due to manual measurement
Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same.