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In our HVAC Air Handler we could not find a suitable location to mount the sensor that did not compromise the Freon Coils Integrity.Published 25 days ago by craig Longenecker
Husband installed this and it works well to tell us when the filter is dirtyPublished 1 month ago by Char J.
Good concept, I think it works pretty good, I bought 3 of them but the issue like which I think some others mentioned is when you have a variable speed fan you have to force it to... Read morePublished 3 months ago by Sleekun
Works great on the furnace. I can now get an idea of when to change the filter.Published 4 months ago by mikewiz
this little gadget is really takes the guess work out of wondering how your furnace filter is doing. when it starts to get dirty it indicates by the sensitive needle. Read morePublished 7 months ago by kevin hillier
These work great if you install and use them correctly. As others have indicated, the hole that you drill is larger than the nipple, so you need to seal the hole well. Read morePublished 8 months ago by Ryan G.
Worked for a day or two then stopped cold. If you taped it, it would move but would never give the same reading. Don't waste your money. Read morePublished 13 months ago by Arthur R. Greenwood
I just about bought one of these, but didn't like the fact that it gives a "replace/don't replace" reading, instead of an actual quantitative vacuum pressure reading... Read morePublished 15 months ago by R Pettit