A very use to use module to measure and display AC voltage using only 2 wires.
More Features :
- Power supply range : No additional power supply needed, direct use of the measured voltage as a power supply, range: AC70V-500V
- Maximum input L AC500V. Note: Input voltage higher than 500V may be permanently damaged!
- Allowable error: ± 1%;
- Input impedance> 1M ohms
- Refresh speed: About 300mS / time
- Net weight: about 18g
- Operating temperature: -20 ° C to 65 ° C
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