 |  | Digital hand held devices for atmospheric, differential and absolute air pressure |  | | Large illuminated display, values are indicated by four 1/2" digits — hPa, Pa, mbar, bar, inHg, PSI | | | Unique thumb-wheel operation (simply use your thumb to select the full range of functions) | | | Automatic switch off | | | Integrated real time clock (date/time) | | | Functions: Hold, Max, Min, average value | | | One point calibration and two point calibration (except type C300) — for clean dry gaseous media | | | 750 to 1100 hPa (mm, inHg, psi) | | | ±0.5 hPa at 25°C | | | ±1.0 hPa for 0°C -1.0 hPa/a (typical) | | | 0.1hPa | |
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