I'm going to slightly disagree with you on this one Daniel. I've used multiple hydrofarm on/off thermostats without any issues for the last 5 years. I'm upgrading some enclosures and equipment soon and I'll probably get the Herpstat 4 or 6 because the enclosures will all be stacked but I found the hydrofarms very reliable. Granted they don't have the nighttime temperature drop and other bells and whistles that you get with the higher end Herpstat. I do agree that a good temp gun is a necessity.