You can get a RKL Level 1 for $120 and still have 2 additional controllable outlets. It's a great controller for the price.
How does the temp probe on the RKL hook up without an SL1 or SL2? Does it plug directly into the head unit?
It's called the iTemp and it connects to the end of the PC4(module that had controllable outlets). No need for a SL1 or SL2 to monitor temp with a RKL
i have been using the dual timer that BRS sells and it has worked great
yeah I understand that part, I can dose mine at the same time because they are dosed in 2 diffrent area's of my sump and fuge with high flow that they never get with each other till they are mixed.