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Martindale PM85 Differential Manometer
  • Martindale PM85 Differential Manometer

Martindale PM85 Differential Manometer

Martindale Approved distributor

Includes: PM85 manometer, Protective cover for safe storage, 2 x 1.5V AAA batteries, detachable carry strap and user nstructions.

£104.58 Save 17%
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A simple to use differential manometer providing accurate pressure readings over 8 different units of measurement.

The results are displayed on the clear LCD display which has a backlight for working in low light environments. The compact size makes it an ideal meter for HVAC and engineering applications.

The Martindale PM85 has the facility to display the maximum reading, the minimum reading, the difference between maximum and minimum readings and the average of the recorded readings.


Differential pressure measurement to 1.45psi (100mbar).
8 selectable units of measurement.
Air speed measurement using a pitot tube.
Hold, Max, Min, Max-Min and Average functions.
Auto power off.
Low battery indication.
LCD display with backlight.
Pocket-sized, compact body.

Martindale PM85 Specifications
Unit of Measurement Range Resolution
mmH20 0 to 1019.7 0.1
mmHg 0 to 75 0.01
psi 0 to 1.45 0.001
inH20 0 to 40.14 0.01
inHg 0 to 2.953 0.001
hPa 0 to 100 0.01
mbar 0 to 100 0.01
Pa 0 to 10000 1
Accuracy 0 to 0.3 hPa ± 0.03 hPa
0.3 to 1 hPa ± 0.05 hPa
1 to 100 hPa ± (0.1 hPa+1.5% of reading)
0 to 3 mmH2O ± 0.3 mmH2O
3 to 10.2 mmH2O ± 0.5 mmH2O
10.2 to 1019.7 mmH2O ± (1.02 mmH2O + 1.5% of reading).
Operating Environment 0 to 50°C at <70% RH.
Storage Environment -20 to 60°C, <80% RH with batteries removed.
EMC Conforms to BS EN61326-1.
General Specifications    
Display Liquid Crystal (LCD).
Measurement Rate Twice per second.
Power 2 x 1.5 V AAA alkaline batteries (IEC LR03, NEDA 24A).
Continuous Operating Time 85 hours typical.
Low Battery Indicator Symbol displayed when battery voltage drops below operating level.
Auto Power Off Approx 10 minutes.
Dimensions (L x W x D) 132.9 x 50.9 x 24.7 mm.
Weight 113g approx incl. batteries.
Martindale PM85 warranty Two-years.


Martindale PM85 Datasheet

PDF Specifications of the Martindale PM85 Differential Manometer.

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Martindale PM85 Differential Manometer

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