Review on 🔍 HFS Pressure Gauge Test, Measure & Inspect - Vacuum-Filled by Kelly Noonan

I ordered two and firstly they look different than the picture. (Actually, mine looks better, looks more metallic and durable, but it's just unprofessional for the seller to portray inaccurate descriptions). Second, and this is a more serious issue, the gauges are already reading vacuum as they sit on my desk in atmospheric conditions, separate from any plumbing (they currently read -6 inches of mercury and -4 inches of mercury). . I didn't expect "atomic clocks" to be accurate, but that's too much of a deviation. I mean, that's about as much pressure drop as I expected from my actual application! would not recommend