| Brand | Unbranded |
|---|---|
| UPC | 7703856742287 |
Check the listing for details. Relay Module 2 Channel Button Self-Locking Interlock High Low Level Trigger. Condition: New. Listed at 10.34 USD. There is a light for each channel to clearly know which switch is working. Adopts single chip design, possess stable and performance, strong anti interference, no false trigger with superior performance.