testo 512 - Pressure and flow velocity measuring instrument 0 to 200 hPa

Order-Nr.  0560 5128

  • 8 measurement units to choose from: psi, kPa, hPa, Pa, mmH2O, mmHg, inH2O, inHg

  • 2 air flow units to select from: fpm, m/s

  • Integrated density compensation

  • Backlit display / min and max values / hold function

The testo 512 differential pressure meter is available in four different models. This model has a measuring range of 0 to 200 hPa, and is ideal for measuring pressure differences at filters, and for carrying out pitot static tube measurements in air ducts at air flow speeds between 10 and 100 m/s.


Product Description

The testo 512, with a measuring range of 0 to 200 hPa, can be used to help you carry out quick and easy filter checks, when performing differential pressure checks on ventilation and air conditioning systems. Differential pressure measurements are carried out to determine whether filters still work properly, or if they are used up and clogged, and need to be replaced.

This differential pressure meter is ideal for carrying out pitot static tube measurements in air ducts at very high air flow speeds, or when the air stream is strongly polluted. This compact, rugged meter shows both the pressure and the air flow speed, and has a measuring range of 10 to 100 m/s.

The damper for adjustable averaging can be programmed individually, while the density compensation is already integrated.

The pitot static tube that you will need to carry out your air flow measurements can be ordered together with your differential pressure meter. Choose from one of three models to select the model that is best suited to your individual requirements. The pitot static tube is inserted into the air duct, where it measures the air flow quickly and reliably.

The testo 512 displays the pressure and air flow speed simultaneously. You can choose between two different units of measurement, m/s and fpm, to indicate the air flow speed, and from eight different units, psi, kPa, hPa, Pa, mmH2O, mmHg, inH2O, and inHg, to measure the pressure.


More accessories for even more benefits in the field

By deciding to invest in some of the practical accessories, you are also actively taking a step towards ensuring that you will be able to make the most of your differential pressure meter for years to come. The all-in-one carrying case and transport case protect both your meter and the pitot static tube during transport and storage, and the TopSafe protective cover protects the meter against impact, dirt, and water ingress.

And last, but by no means least, there’s the testo turbo printer, which can provide you with quick and easy printouts with time and date, while you are still on site.

Delivery Scope

testo 512 differential pressure meter (measuring range of 0 to 200 hPa), calibration certificate, and batteries

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Technical Data

Differential Pressure

Measuring range

0 to +80 InH₂O / 0 to +200 hPa

+1969 to +19685 fpm / +10 to +100 m/s

1970 to 19690 fpm


0.5 % Fs


0.1 InH₂O / 0.1 hPa

0.1 fpm / 0.1 m/s

0.1 fpm


±800 InH₂O / ±2000 hPa

General technical data


8 x 2 x 2 in. / 202 x 57 x 42 mm

Operating temperature

32° to 140 °F / 0 to +60 °C

Measuring medium

All non-corrosive gases

Seceltable units

hPa, Pa, mmH₂O, inH₂O, inHg, mmHg, kPa, psi, m/s, fpm

Battery type

9V block battery, 6F22

Battery life

120 h

Display type


Display size

2 lines

Storage temperature

14° to 158 °F / -10 to +70 °C


11 oz. / 300 g



$ 829.00
excl. tax

Additional accessories and Spare parts

Pitot tube, stainless steel, 3.3 ft

Order Number: 0635 2345


Order Number: 0516 1200

$ 101.00
excl. tax

Order Number: 0516 1201

$ 71.00
excl. tax

Transport Case

TopSafe, protection from impact and dirt

Order Number: 0516 0221

$ 54.00
excl. tax