testo 511 measures absolute pressure for i.e. absolute pressure compensation at ducts with a pitot tube. It's +/-1.2 "H20 accurate. It can also calculate barometric pressure and measure altititue. This handy pocket meter is very easy to operate.
- Calculation of barometric air pressure
- Barometric altitude measurement
- Accuracy +/-3 hPa
- 8 switchable pressure units: hPa, mbar, Pa, mmH2O, mmHg, inH2O, inHg, psi