Unless im mistaken, the only VEs with auto shutoff are VE300 or VE300x2. The 100 and 200 only have a hi/lo history. As for the Herpstats, the 1,2 or 4 have auto shutoff. So if you are looking at either of those 2 brands, I would advise you get one with a user set max limit so if the thing does fail, it wont fail full open. I prefer the Herpstats personally.
Oh correction, I guess all the VEs have auto shutoff too except hobbystat. It was only the 300 and 300x2 that have the alarms. I'll go back to sleep now![]()