Excellent Tool!!!! So glad to find it. HVAC Techs need to get this if you don't have it.
This tool is one of Fieldpieces old draft simulator and it has always worked good. Fieldpiece, since this was working so good, tried to incorporate the same technology into its Manometer. Unfortunately, and this often happens, they should have left it alone. It does not work as well in the Manometer as it did as a stand alone tool. Love this tool and had one before but misplaced after I purchased the manometer one. Glad I found it and at such a great price.
Verified purchase: YesCondition: Pre-owned