AC main Isolated detector module 5V and 3.3V output level compatible

Isolated AC mains Voltage Detection Features:

Isolated voltage detection is vital in many industrial applications. Isolation is a means of preventing direct or alternating currents between two parts of a device, while allowing signal and power transfer between those two parts. Isolation also manages ground-potential differences provides noise immunity and defends against high voltages. Traditionally voltage detection applications have used  dc or ac optocouplers (photocouplers) where they fit in the middle of the signal path for isolation.

• Screw terminals for easy and robust connections
• 5V or 3.3V level compatible microcontrollers
• Led indication for visual verification of working status
• the module gives 0 at 220V existence and logic 1 at no voltage exists