â·ÃÊͺ¶ÒÁÃÒ¤Ò testo 510 handy measuring instrument for differential pressure incl. protection cap, batteries and calibration protocol Testo 510 Handy measuring instrument for differential pressure incl. protection cap, batteries and calibration protocol The differential pressure meter is ideally suitable for pressure measurements in the range 0 to 100 hPa. testo 510's differential pressure measurement is temperature-compensated for accurate readings. Readings can be displayed in Pascal over the whole measurement range. Magnets at the back of the instrument enable hands-free operation, for instance, while adjusting gas heaters. Display in Pascal possible over entire measurement range Accuracy: ±0.03 hPa (0 to 0.30 hPa) / ±0.05 hPa (0.31 to 1.00 hPa) Temperature compensation Magnetic rear permits free-hand work Flow velocity measurement with Pitot tube (Pitot tube not included in delivery) Air density compensation Protective cap for safe storage Including wrist strap and belt holder Backlit display Switchable units: hPa, mbar, Pa mmH2O, mmHg, inH2O, inHg, psi, m/s, fpm Storage temperature -40 to +70 °C Operating temperature 0 to +50 °C Battery type 2 batteries Type AAA Battery life 50 h Weight 90 g Dimensions 119 x 46 x 25 mm Probe type Differential pressure Meas. Range 0 to 100 hPa Accuracy ±0.03 hPa (0 to 0.30 hPa) ±0.05 hPa (0.31 to 1.00 hPa) ±(0.1 hPa + 1.5 %of mv) (1.01 to 100 hPa) Resolution 0.01 hPa Differential Pressure Meter Manometer Testo Testo 510 à¤Ã×èͧÇÑ´¤ÇÒÁ´Ñ¹ÅÁ