Vôn kế kỹ thuật số 0.28 inch DC 2.5V-30V
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Giới thiệu Vôn kế kỹ thuật số 0.28 inch DC 2.5V-30V
100% brand new and high quality.Features:
1. The wiring of this voltmeter is simple. The red is connected to the positive, the black is connected to the negative, and the reverse connection is protected.
2. Conventionally do not need an external working power supply, you can work directly with the measured voltage, measuring the voltage range of the second line 2.5-30V.
3. Wide voltage operation, red minimum measurement voltage 2.5V, the maximum safe pressure can reach 40V, more than 40V may be damaged.
4. When measuring voltage below 10V, two digits are displayed after the decimal point; when measuring voltage above 10V, one digit is displayed after the decimal point.
Specifications:
Measuring range: two-wire DC 2.5~30V
Power supply range: no separate power supply, the measured voltage <40V, higher than 40V may be damaged
Test accuracy: accuracy calibrated with adjustable voltage resistor
Input impedance: >50KΩ
Working current: <30mA
Refresh rate: about 100mS/time
Display specifications: three 0.28 LED digital tubes (red, blue, green, yellow and white 5 colors optional)
Lead length: 15cm
Display color: red, blue, green, yellow
Dimensions: 30 x 11.5 x 9 mm
Opening size: hole distance: 26mm hole diameter: 2.2mm
Working temperature: -10 ~ +65 °C
Working humidity: 10 ~ 80%
Working pressure: 80 ~ 106kPa
Note: Please allow 1-3cm error due to manual measurement. please make sure you do not mind before you bid.
Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!
Package includes:
1 × Digital Voltmeter
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