Meriam Process Technologies

M202 Absolute Manometer

Precision absolute manometer brings calibration bench accuracy to a portable, handheld unit

Starting At
$2,210.00 CAD
Normally ships in 1-2 Weeks

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Meriam’s model M202 Precision Absolute Manometer brings calibration bench accuracy to a portable, handheld unit.  The pressure sensor is all 316 stainless steel, allowing it to be used with liquids, gases, and corrosives that are compatible with 316 stainless steel.  This combination of accuracy and fluid compatibility makes the M202 ideal for environmental, test or real-time process measurements of pressure relative to absolute zero. 

The M202 includes features for minimum and maximum (Min/Max) value capture, tare readings, and user selectable engineering units. A selectable altitude function allows users to enter site altitude above sea level in order to display local barometric pressure or barometric pressure corrected to sea level. User referenced altitude (referenced to map or trig markers) or altitude based on US Standard Atmosphere of 1962 can be selected for display. Using the altitude function with the Min/Max and Tare features makes the M202 very useful as a surveyor’s tool to accurately measure changes in altitude.

This product is an updated version of the 355.



• Impressive accuracy
• Numerous applications including leak testing and pressure drop monitoring
• Compatible with a wide variety of materials including liquids, gases, and corrosives (that are compatible with 316 stainless steel)
• Contrast adjustment for best viewing
• User enabled automatic shut-off to save battery life
• Recalibrate in the field
• Designed to handle tough applications

Accuracy AI0017: FS = 17.403 PSIA or 900 mm Hg abs. 0.02% F.S.
AI0038: FS = 38.674 PSIA or 2,000 mm Hg abs., 0.015% F.S. from 0 - 19.337 PSIA (0 - 1,000 mm HgA)
0.025% F.S. from 19.338 - 38.674 PSIA (0 - 1,000 -
2,000 mm Hg abs.)
Display 5 significant digit LCD (0.25 in high) 2 line x
16 alphanumeric characters
Power Four (4) AA alkaline batteries with user enabled
automatic shut-off
Process Connections 1⁄8 in female NPT, 316 stainless steel
Media Compatibility Isolated AI sensor for fluids compatible with 316 stainless steel
Pressure Limits 77 PSIA (4,000 mm Hg)
Engineering Unit Selection mm Hg, PSI, in Hg, mbar, bar, kPa, Torr, ft, m
Storage Temperature -40C - 60C (-40F - 140F)
Operating Temperature -5C - 50C (23F - 122F)
N.I.S.T. Traceability N.I.S.T. certificate supplied for all models
Materials ABS plastic case
Weight 14 oz
Dimensions 6.5 in x 3.6 in x 2.25 in)
Other Features Backlight, contrast adjustment, field recalibration, tare
Approvals CE compliant, Intrinsically Safe (cULus and ATEX)
ABS plastic carrying case for M200, M201 and M202 manometers
Normally ships in 1-2 Weeks
$130.00 CAD
Low-pressure connector kit for the M1 series of manometer calibrators
Normally ships in 1-2 Weeks
$195.00 CAD
316 stainless steel 3 valve manifold with stainless steel tubing, to 3000 PSIG
Normally ships in 1-2 Weeks
$790.00 CAD
Red protective boot for for M2 series manometers
Normally ships in 1-2 Weeks
$40.00 CAD
Available with 1/8 in or 1/16 in NPT needle
In Stock
Starting At
$306.00 CAD
Replacement integral push-to-read (normally open) equalizing valve (for 3 port pressure manifold only)
Normally ships in 1-2 Weeks
$390.00 CAD
316 stainless steel 3 valve manifold with brass tubing, to 500 PSIG
Normally ships in 1-2 Weeks
$377.00 CAD