Quote Originally Posted by satomi325 View Post
If you're willing to pay, then buy a Herpstat by Spyder Robotics. They are the best thermostats you can get. The base model costs $99.

Hydrofarms work ok if you're on a budget, but I will always recommend the Herpstat if you're willing to pay for it. What you pay is what you get.

I have a Hydrofarm on my quarantine rack, but a Herpstat on my main enclosures.
The Hydrofarm is an On/Off type thermostat where it turns on, if the temp drops below the set temp and turns off when it reaches the set temp. It has about a 3 degree temp swing. So basically it gets hot-cool-hot-cool.
Herpstats are proportional thermostats where it keeps the temp constant by regulating how much power goes into the heating element itself. What I like the best about Herpstats is that they turn into the Off position if they malfunction. Most T-stats do not do that and leave their heat mats to turn on full blast, which is a potential hazard. Higher models also have other safety functions.

Do all of the Herpstats have the function of going into the off mode if they malfunction? I am planning on getting the Herpstat 1 Basic and it says it does not have the "built in safety power relay" is this a different function than the one you are talking about? The reason I am wanting to go with the Herpstat 1 Basic rather than the Herpstat Intro is because is says they are not recommended for racks. Which model are you running?