3ch 3 Channels Ac 220v Optocoupler Isolation Board Module Insulated Board Test Module Without Pcb Support Ac Detection

Description

3-channel optocoupler isolation module ac 220 v test module no pcb support

Product introduction:

1. function: test if ac 220 v is existing; when there is 220 v, the optocoupler can be conductive to earth; otherwise, it is not conductive

2. high / low level output: can connect directly with the scm io interface for testing, the voltage is 3-5 v

3. adaptable to connect with the plc, compatible with almost any input from plc