6PCS Digital Voltmeter Ammeter,DC 4.5-30V Voltage Meter Tester Two-Wire Red LED Voltmeter Waterproof Display Voltage Tester for Solar Battery Monitor Car (DC 0-100V Red Blue)

Power supply range: DC 3.5-30V, no additional power supply, directly use the test voltage as a power supply. Input voltage higher than 30V may cause damage to the product.
Working current: red <23mA, green <18mA, blue <12mA;Refresh rate: 300ms at a time.
Simple Wiring: red positive, black negative.Lead length:20cm(7.87'').
Reverse Protection:If it is reversed, it will not be burned.
High precision:The decimal point moves automatically and is equipped with a miniature potentiometer for fine adjustment

Measure voltage: DC 3-30V (2 wires Access).
Input Polarity: DC voltage
Display: 0.56" digital LED Tube，Display Color: Red

Dimensions: 48mm x 29mm x 22mm
Refresh rate: about 300mS / times
Operating temperature: -10°c to 65°c
Wire length: 20cm

Method of wiring
Red wire: Positive
Black wire: Negative

Measurement accuracy (allowable tolerance: 1% +/- 1)
Less than 10V, accurate to 0.01V;
More than 10V, accurate to 0.1V;

NOTICE

If the input voltage is higher than DC 30V, the voltmeter will be burnt.

Please don't use this meter in 24V battery since when the battery is full-charged, its voltage will be about 30V.

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