This voltmeter’s wiring is simple, it only need to connect two wires, the red wire is to connected to positive pole, the black wire is to connected to negative pole, There is protection when the wires aren’t correctly connected, the electric circuit won’t be bumed.It has reverse connect protection.
This voltmeter doesn’t need external drive working power, it can work with measuring voltage, the working voltage’s range is70-500v
Good stability and high measurement accuracy.
- Measuring range: AC70V-500V
- Power supply range
- No additional power supply needed, direct use of the measured voltage as a power supply, range: AC70V-500V
- Maximum input
- AC500V. Note: Input voltage higher than 500V may be permanently damaged!
- Allowable error: ± 1%;
- Input impedance> 1M ohms
- Working current red <23mA, green <18mA, blue <17mA
- Refresh speed: About 300mS / time
- Display mode
- Three-digit 0.56″ LED digital tube
- Display color:
- Red, green, blue ( optional )
- Lead length: about: 20 cm / 7.87 in
- 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
- Net weight: about 18g
- Operating temperature: -20 ° C to 65 °