The testo 510 is a highly accurate differential pressure meter, designed for HVAC technicians, heating engineers, and facility maintenance professionals. Measuring differential pressure from 0 to 100 mbar, it is ideal for checking air filters in ventilation systems, measuring static and gas flow pressure in heating systems, and performing airflow measurements when used with an optional Pitot tube.

Differential Pressure

• Measuring range: 0 to 100 hPa

• Accuracy:        ±0.03 hPa (0 to 0.30 hPa)

                        ±(0.1 hPa + 1.5 % of mv) (1.01 to 100 hPa)

                        ±0.05 hPa (0.31 to 1.00 hPa)

• Resolution:      0.01 hPa

Technical data

• Dimensions: 119 x 46 x 25 mm

• Operating temperature: 0 to +50 °C

• Protection class:  IP40

• Seceltable units: hPa, mbar, Pa, mmH2O, inH₂O, inHg, mmHg, psi, m/s, fpm

• Maximal static pressure: 500 mbar

• Measuring rate: 0.5 s

• Battery type: 2 AAA micro batteries

• Battery life: 50 h (average, without display illumination)

• Storage temperature:  -40 to +70 °C

• Weight 90 g (with batteries and protective cap)