A manometer for checking the drive-air pressure that a dental unit delivers to the handpiece. It fits between the unit hose and the handpiece and has a stainless-steel casing.
One box holds a 2-hole and a 4-hole gauge. Bestdent gives test ranges of 0.20–0.25 MPa (2.0–2.5 kg/cm²) for high-speed handpieces and 0.30–0.32 MPa for low-speed handpieces.



