2 Wires 0.56 inch DC 4.5-30 V Digital Red LED Panel Voltmeter

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DC 4.5-30 V RED LED Digital Voltmeter


Description:
1. Operating voltage: no need to connect to any power supply, two-wire system
2. The two-wire voltage meter design, the wiring is simple, easy to install
3. When there is a slight error, you can calibrate it through the circuit board, "fine-tuning" potentiometer for calibration

Specifications:
1. Measuring range: DC 4.5V-30V
2. Power supply range
No additional power supply needed, direct use of the measured voltage as a power supply, range: DC4.5-30V
3. Allowable error: ± 1%;
4. Input impedance> 1M ohms
Refresh speed: About 300mS / time
5 Display mode Three-digit " 0.56 " LED digital tube
6. Display the color: Red
7. Lead length: about: 20 cm / 7.87 in
8. Outside dimensions: about: 4.8 x 2.9 x 2.2 cm / 1.89 x 1.17 x 0.87 in
Hole Size: about 4.6 x 2.7 cm / 1.81 x 1.06 in
9. Net weight: about 18g
10. Operating temperature: -20 ° C to 65 ° C

Additional Photos