1. [RELIABLE 8 CHANNELS] Emits low level when 220V is normal. High level when powered off.
2. [VERSATILE USAGE] Great for PLC connections and MCU testing with 3-5V.
3. [STABLE SIGNAL] Indicates AC 220V presence accurately. Easy to connect to power supply.
4. [LONG-LASTING MATERIAL] High-quality PCB for durability and reliability.
5. [EFFORTLESS INSTALLATION] Convenient blue terminal for voltage and yellow pin for output signal.

Specification:
Item Type: Optocoupler Isolation Board
Material: PCB
Function: Test whether AC 220V exists.
Output TTL Level: MCU can be used for testing, the voltage is 3-5V.
Connection: Output can be connected to PLC 24Vb.

Package List:
1 x Optocoupler Isolation Board

Notice:
After the module is powered up, do not touch any part of the white wire frame on the board as it is high voltage. Pay attention to electrical safety.