Lot of 3X PHOENIX CONTACT PLC-BSC-24DC/21-21 Relay with Socket Base 250VAC/2X6A

A nice touch is that Phoenix Contact often includes helpful labeling, which can simplify troubleshooting when seems off.

Ametek Panalarm Relay PN: 70TCF1-12D 12 VDC Logic Supply 1.2W 2A MAX

The General Purpose Relay offers a familiar layout that many electricians and hobbyists will recognize rightYou will find that this General Purpose Relay is easy to troubleshoot when a sensor input is acting up.