Absolute pressure gauge Testo 511
The testo 511 absolute pressure gauge is a very compact handheld device that is easy to operate, measures barometric pressure, calculates altitude above sea level and has a high accuracy of: ± 3 hPa .
The testo 511 is normally used to measure absolute pressure, e.g. for density compensation in flow measurement in ducts, laboratories and production processes. Other measurement parameters are barometric air pressure (= air pressure at sea level) and altitude above sea level.

Technical parameters:
| General technical data | |
|---|---|
| Weight | 90 g (with batteries and protective cap) |
| Dimensions | 119 x 46 x 25 mm (incl. protective cap) |
| Operating temperature | 0 to +50 °C |
| Protection class | IP40 |
| Seceltable units | hPa, mbar, Pa, mmH₂O, inH₂O, inHg, mmHg, psi |
| Battery type | 2 AAA micro batteries |
| Battery life | 200 h (average, without display illumination) |
| Storage temperature | -40 to +70 °C |
| Absolute Pressure | |
|---|---|
| Measuring range | 300 to 1200 hPa |
| Accuracy | ±3 hPa ± 1 Digit |
| Resolution | 0.1 hPa |
| Measuring rate | 0.5 s |

