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2.5V-30V Pro 0.28 Inch Mini Digital Voltmeter Voltage Tester Meter LED Screen Electronic Parts Accessories Digital Voltmeter Red
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Specificatii:
(1). The wiring of this voltmeter is simple. Two wires are used regularly.The red is connected to the positive, the black is connected to the negative, and the reverse connection is protected.
(2). Conventional operation power is not required, and the measurement voltage can be directly operated, and the measurement voltage range is 2.5-31.5V;
(3). Wide voltage operation, red minimum measurement voltage 2.5V, maximum safe pressure up to 40v, more than 40v may be damaged;
Measuring range: 2-wire DC 2.5~31.5V
Power supply range: no separate power supply
Tested voltage: <40V higher than 40V may be damaged
Test accuracy: accuracy calibrated with adjustable voltage resistor
Input impedance: >50K Ohms
Working current: <30mA
Refresh rate: about 100mS once
Display specifications: three 0.28 LED digital tube
Lead length: default 15cm
Dimensions: 30 x 11.5 x 9 mm
Display color: red, blue, green
Opening size: hole distance: 26mm hole diameter: 2.2mm
Working temperature: -10 ~ +65 Celsius degree
Working humidity: 10 ~ 80%
Working pressure: 80 ~ 106kPa
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