testo-510-Differential-Pressure-Meter-Testo-0560-0510-P-The-Testo-0560-0510-is-a-510-Differential-Pressure-Meter-that-has-temperature-compensated-measurement-as-well-as-air-density-compensation-giving-it-more-accurate-readings-The-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-The-Testo-510-Manometer-is-supplied-with-a-Protective-Cap-a-belt-clip-&-wrist-st