Handheld Digital Manometer

Handheld Digital Manometer
Business Type Manufacturer, Exporter, Supplier, Retailer, Wholesaler
Type Digital Manometers
Material Mild Steel, Stainless Steel
Diameter 20-40mm, 40-60mm, 60-80mm, 80-100mm
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Preferred Buyer From

Location Worldwide

Product Details

Industrial Use
Accuracy, Easy To Fit, Measure Fast Reading
Display Type
Automatic Grade
0-5000psi, 10000-15000psi
Brand Name
Sunder Electronics

Handheld Digital Manometer measures positive, negative and differential pressures. It is housed in rugged, extruded aluminum case. It is lightweight, fast and easy-to-use and is featured with selectable English/metric units. Also, it is FM approved. Our Glass Level Indicator is ideal for field calibration, monitoring or trouble shooting HVAC systems, clean rooms, or a wide range of other low pressure pneumatic systems. This handy instrument measures positive, negative or differential pressures of air and natural gases in ranges from 1 in. W.C. (0.249 kPa) to 150 PSID (10.34 bar). The Series 475-FM is approved and is intrinsically safe for hazardous locations, Class 1, Div. 1, Group A, B, C, D, T4. It’s simple operation and easy-to-read digital display makes it an indispensable test instrument for the plant engineer, industrial hygienist and HVAC technician. When used with a Dwyer® Pitot tube (see Flow and Air Velocity), the Series 475-FM Mark III can also be used as an air velocity gage. See the complete 475-1-FM-AV kit described below.

The Series 475-FM Mark III is housed in a durable extruded aluminum case with its solid state circuitry mounted on a tough fiberglass epoxy circuit board. To meet the most demanding applications and to provide stability of instrument reading, the 1 in. w.c. range is compensated for position sensitivity through the use of a unique patented dual sensor system. A standard 9 volt battery provides up to 100 hours of operation. It has dual push pads on the front panel control on-off, auto zero and pressure unit selection. No set-up or leveling. The large 0.42 LCD display is easy to read, minimizing data collection errors. Units include a “low battery” indicator. The pressure sensor used is a highly stable silicon piezoresistive device. Standard connections are dual sized for 1/8" or 3/16" I.D. vinyl or rubber tubing. Complete instructions are conveniently printed on rear of housing.


475-AV Air Velocity Kit : Includes the Series 475-FM Manometer, two A-303 static pressure tips two 9 ft. lengths 3/16 I.D. rubber tubing, no. 166-6- CF Pitot tube, A-397 step drill, A-532 air velocity slide chart and instruction bulletin H-11, all packed in a tough, molded plastic carrying case with die cut foam liner. To order, add AV suffix to any standard 475 model no.


A-402A Carrying Case : Tough gray nylon pouch protects any Series 475 Manometer. Double zippered for quick and easy access. With belt loop that snaps closed.

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Service Air and compatible combustible gases
Wetted Materials Consult factory
Accuracy ±0.5% F.S., 60 to 78oF (15.6 to 25.6oC); ±1.5% F.S. from 32
to 60°F and 78 to 104oF (0 to 15.6oC and 25.6 to 40oC).
Pressure Hysteresis ±0.1% of full scale.
Temperature Limits 0 to 140oF (-17.8 to 60oC)
Compensated Temperature Limits 32 to 104oF (-0 to 40oC)
Storage Temperature Limits -4 to 176oF (-20 to 80oC)
Display 0.42(10.6 mm) 4 digit LCD
Power Requirements 9 volt alkaline battery. Battery not connected
Weight 10.8 oz (306 g).
Connections Two barbed connections for use with 1/8 (3.18 mm) or
3/16 (4.76 mm) I.D. tubing. Two compression fittings for use with 1/8
(3.18 mm) I.D. x 1/4(6.35 mm) O.D. tubing for 475-7-FM & 475-8-FM
Agency Approvals: FM, CE.


Model Number English Range Metric RAnge Maximum Pressure
475-000-FM- 0-1.000 in w.c. .2491 kPa 5 psig
475-00-FM 0-4.000 in w.c. 0.996 kPa 5 psig
475-0-FM 0-10.00 in w.c. 2.491 kPa 5 psig
475-1-FM 0-20.00 in w.c. 4.982 kPa 10 psig
475-2-FM 0-40.00 in w.c. 9.96 kPa 10 psig
475-3-FM 0-200.0 in w.c. 49.82 kPa 30 psig
475-4-FM 0-10.00 psi .6895 bar 30 psig
475-5-FM 0-20.00 psi 1.379 bar 60 psig
475-6-FM 0-30.00 psi 2.069 bar 60 psig
475-7-FM 0-100.0 psi 6.895 bar 150 psig
475-8-FM 0-150.0 psi 10.34 bar 200 psig


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