Herpstat 1 basic or 1 for rack system?

[aorsak]

"The Herpstat 1 Basic takes the core features of the Herpstat 1 but leaves out the hardware internal clock, safety relay feature, and humidity functions to bring the cost down" What's the safety relay feature? Is it like the safety shut off feature or something? If have a small home made rack system, should I just go with the Herpstat 1?

 

[scm133]

I have both, plus the Herpstat 2 and 4. The main difference is the new safety relay feature. The Basic has a system that will shutoff off if probes are disconnected. Personally, I feel the Herpstat 1 is a newer model, so I would go with the newer Herpstat 1. If your budget will allow, go with the Herpstat 2 or 4. Most people realize real quick, that one rack is not enough.
Here is a link to compare the different models. https://www.google.com/url?sa=t&rct...hB8NRN7vMHos0NE-Q&sig2=ewG7ZQh9L_XkhSnJlxe2Fg

 

[aorsak]

I was thinking about getting a cheap one for now then buying the herpstat 1 or 2 when I have more money to spend on expanding my rack and thermostats.

 

[indyana]

The safety relay is one of the reasons that I like HerpStats, so I would go with the HerpStat 1.

You can read about triacs and the safety relay feature here:
IMPORTANT SAFETY INFORMATION AND WARNINGS FOR THERMOSTATS : Spyder Robotics