How to use the RKC CB900L

How to use the RKC 900 as a high-limit controller. Installed on an Alpine EF-16 electric kiln.

[@africantwin173]

Whats the difference between a REX c700 and a REX c900 . V*AN SSR versions. There on Aliexpress. I need one for my UDS with a fan.

[@ronakhansaliya3088]

Please make video settings offset value