LC Tech 4-Relay ESP-01 Enclosure

LC Technology 12V 4 Channel Relay Board (LC-ESP01-4R-12V)

https://templates.blakadder.com/LC-ESP01-4R-12V.html

Use M3 x 10mm cap screws.

Printed labels for NO, COM, NC did not come out well - but I think there's enough there to know what it is.

Manufacturer page at http://www.chinalctech.com/m/view.php?aid=428