AMC 2026 catalogue

Test Instruments

Manometers & Differential Pressure Measurement

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TEST INSTRUMENTS

Handheld Digital Manometers DWYER®

0 to 200", 20", and 40" w.c. Handheld Digital Manometers— Measure positive, negative, or differential pressure. Function as air velocity gauges when used with pitot tubes. Meet Class I, Div. 1, Group A, B, C, D, and T4 standards for hazardous locations. -20 to 20 w.c Handheld Digital Manometer—Designed for HVAC contractors. Measurements help with setting supply pressures, verifying pressure switch operations, adjusting regulators, checking pneumatic systems, and examining comptuer peripherals.

WWG3LYE2

WWG3LYC4

WWG1XFW4

EXTHD750

For Use With Includes Brand

Item

No. Manometer Accessory Kit

Mfr. No. 475-1-FM, 475-2-FM, 475-3-FM,

477-1-FM, 477-2-FM, and 477-3-FM

(2) No. A-303 Static Pressure Tips With Magnetic Mounting, (2) 3⁄16 in I.D. Rubber Tubing, (1) 9 Volt Battery, (1) No. A-397

Step Drill for 3⁄16 in - 1⁄2 in Holes in 1⁄16 in Increments, (1) No. A-532 AV Slide Chart, (1) Pitot Tube, Polyethylene Case.N17

Dwyer WWG1VD54

Item Pressure Range Operating Temp. Range Display Battery Type Connection Type

Item

No. Dwyer

Handheld Digital

Manometer 0 to 200 in wc 0° to 140° F 3 1⁄2 Digit LCD 9 V Fits 1⁄8 or 3⁄16 in

ID Tubing WWG1XFW4

Handheld Digital

Manometer 0 to 20 in wc 0° to 140° F 3 1⁄2 Digit LCD 9 V Fits 1⁄8 or 3⁄16 in

ID Tubing WWG1XFW2

Handheld Digital

Manometer 0 to 40 in wc 0° to 140° F 3 1⁄2 Digit LCD 9 V Fits 1⁄8 or 3⁄16 in

ID Tubing WWG1XFW3

Digital Manometer -20 to 20 in wc 0° to 140° F 4 Digit LCD 9V Fits 3⁄16 or 1⁄4 in

ID Tubing WWG1LZN6

Extech

Digital Manometer 0 to 13.85 in wc 32° to 122° F Large LCD 9V Fits 1⁄8 in ID Tubing EXTHD755 Digital Manometer 0 to 138.3 in wc 32° to 122° F Large LCD 9V Fits 1⁄8 in ID Tubing EXTHD750 Pitot Tube Anemometer + Differential Manometer 0 to 20 in wc 32° to 122° F Large LCD 9 V 5⁄8 in Connectors EXTHD350

Digital Manometer 0 to 55.40 in wc 32° to 122° F Large LCD 9V Fits 1⁄8 or 3⁄16 in

ID Tubing EXTHD700

Pressure Meter

30 psi (2 bar), 150 psi (10 bar) or 290 psi (20 bar) (Dependent

on Transducer)

32° to 122° F (0° to 50° C) Backlit LCD (6) AA Threaded, 1⁄4 in

PS, 19 TPI EXTSDL700

General

Digital Manometer 0 to 100 psi 32° to 122° F 4 Digit LCD 9V (2) 0.16 in ID x 0.24 in

OD x 39.37 in Hoses WWG3LYE2

Test Products Intl.

Digital Manometer -120 to 120 in wc 32° to 104° F 5 Digit LCD With Backlight 9V — WWG3LYC4

UEI Test Instruments Static Pressure Test Kit ±60 in wc 32˚ to 104˚F (0˚ to 40˚C) LCD 9 V 1⁄4 in WWG36H169

Digital Manometer -60 to 60 in wc 32° to 104° F (0° to 40° C) Backlit LCD 9V (2) Barbed WWG49KE06

Digital Manometer -60 to 60 in wc 32° to 104° F (0° to 40° C) 4 Digit Backlit LCD 9V (2) 1⁄4 in Barbs WWG9LHH8

DWYER, EXTECH, GENERAL, TEST PRODUCTS INTL., UEI TEST INSTRUMENTS

HVAC and Refrigeration Service Pressure Test Kits and Accessories

WWG12H949

Item Features Includes Connection

Material of Construction Brand

Item

No.

Static Pressure Pickup Wall Plate 60 Micron Fine Mesh Filter on Sensor, Mounts on Single Gang Electrical Box

Foam Gasket, Mounting Screws Barb Fitting 1⁄8 in to 3⁄16 in ID Tubing Stainless Steel Dwyer WWG23Z321

Static Pressure Tip Integral Mounting Flange

with Rubber Gasket Mounting Screws Barb Fitting for 3⁄16 in ID Tubing 303/304 SS Dwyer WWG23Z318

Static Pressure Tip Integral Mounting Flange

with Rubber Gasket Mounting Screws Barb Fitting for 3⁄16 in ID Tubing 303/304 SS Dwyer WWG23Z317

Static Pressure Tip Integral Mounting Flange

with Rubber Gasket Mounting Screws Barb Fitting for 3⁄16 in ID Tubing 303/304 SS Dwyer WWG23Z319

Static Pressure Fitting 60 Micron Fine Mesh Filter on Sensor Mounting Screws Barb Fitting 3⁄16 in to 3⁄8 in ID Tubing 316 SS Dwyer WWG23Z320 Portable Static Pressure Tip Magnet To Hold In Place Magnet For 3⁄16 ID Rubber or Plastic Tubing — Dwyer WWG1W401

Static Pressure Pickup Wall Mount 60 Micron Fine Mesh Filter on Sensor, Mounts on Single Gang Electrical Box

Foam Gasket, Mounting Screws Barb Fitting 1⁄8 in to 3⁄16 in ID Tubing Polycarbonate Dwyer WWG23Z322

Static Pressure Pickup Ceiling Plate Mounts on Standard Junction Box — Barb Fitting 1⁄8 in to 3⁄16 in ID Tubing Metal Dwyer WWG23Z323

Range Slack Tube Length (in.) Includes Brand

Item

No. Gas Pressure Test Kit

0 to 10 in wc 36.0 Barb Fitting Yellow Jacket WWG12H949 0 to 35 in wc 36.0 Barb Fitting Yellow Jacket WWG12H950

DWYER, YELLOW JACKET

EXTECH®

USB interface with software included. Max./min./avg. readings. Pilot Tube Anemometer + Differential Manometer features 5 selectable units and measures air velocity/flow in tight locations. Differential Pressure Manometers feature 11 select- able units and low range/high resolution gauges or differential pressures.

GENERAL®

Gauge/differential pressure tester features 11 selectable units, disableable auto off, min./max. memory, and dual display with relative time clock. For HVACR technicians measuring pressure levels. Other applications include medical equipment, computer peripherals, and pneumatic controls. TEST PRODUCTS INTL. Differential manometer measures pressure in 7 units. Features trim mode to stabilize readings when pressures fluctuate. Auto off kicks in after 40 min.