V1NF New Two Wires Digital Voltmeter Green LED Display DC2.7-30V Voltage Meter

Feature:
Two wires digital voltmeter， mini size， with reversal protection， and connect easily.
According to the different measuring voltage， automatically moving the position of the decimal point.
Measure Voltage Range: DC2.50-30V. When the voltage lower than 3.5V， the brightness of the LED display is dimmed， but does not affect the correct measurement.
Min Input Voltage: DC2.50V
Max Input Voltage: DC30V
Measurement Accuracy: 1% (+ / - 1 digit)
Display: Three digit 0.36" LED
Display Color: Red， Blue， Green
Refresh Rate: about 500mS / times
Power Supply: No need other power supply
Operating Temperature: -10°C - 65°C
Size: 3.7 x 2.3 x 1.5(cm)
Thickness: 10mm
Mounting Hole Center Distance: 28mm
Screw Size: M2.0 x 12(This item NOT included)
Wire Length: about 15cm
Weight: 5G
Wiring: Red wire: Measure Voltage +，(2.50-30V DC)
Black wire: Measure Voltage -

Some applications:
Measure 18650 batteries
Measure Cell-phone Lithium Batteries
Measure Nickel-hydride Battery Pack
Measure Cars Motorcycles Battery Voltage Etc.

1 x Two Wires DC2.5-30V Digital Voltmeter