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The distinguished heritage of Dwyer Instruments is based on quality and reliability. The company stands as a major manufacturer of competitively priced controls and instrumentation for HVAC, chemical, food, oil and gas, and other industries. Dwyer’s popular brands and diversified products include the proven Magnehelic differential pressure gauges, as well as Photohelic pressure switch/gauges and Rate Master flowmeters. Following decades of progress, Dwyer continues to move forward, continually introducing and updating its accurate instruments. Transcat carries an impressive inventory of Dwyer models, including the top of the line series of manometers, digital pressure gauges, differential pressure controllers, flow switches, air velocity meters and more.
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Dwyer Instruments VA10420 Variable Area Glass Flowmeter Maximum flow rate 52.3 SCFHOrder #: VA10420 Mfg #: VA10420 Availability: In stock Special Price $101.01 Regular Price $257.30Variable Area Glass Flowmeter Maximum flow rate 52.3 SCFH Learn More -
Dwyer Instruments VAT-6013 VAT Variable Area Flowmeter Flow rate 40 LPM (10.57 GPM)
Order #: VAT-6013 Mfg #: VAT-6013 Availability: In stock $1,810.50VAT Variable Area Flowmeter Flow rate 40 LPM (10.57 GPM) Learn More -
Dwyer Instruments GFM-2104 Gas Mass Flow Meter 0-100 mL/m, stainless steel
Order #: GFM-2104 Mfg #: GFM-2104 Availability: In stock $2,680.65Gas Mass Flow Meter 0-100 mL/m, stainless steel Learn More -
Dwyer Instruments SLD-ACY Single Channel Leak Det Relay 470 to 10k ohm adj sensitivity
Order #: SLD-ACY Mfg #: SLD-ACY Availability: In stock $220.80Single Channel Leak Det Relay 470 to 10k ohm adj sensitivity Learn More -
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Dwyer Instruments ER14250 Replacement Battery for Series STDL-10
Order #: ER14250 Mfg #: ER14250 Availability: In stock Special Price $11.61 Regular Price $18.65Replacement Battery for Series STDL-10 Learn More -
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Dwyer Instruments DR224182 Dir readng glass flwmtr, 316 SS float, flow rate 3.8 SCFH air.
Order #: DR224182 Mfg #: DR224182 Availability: In stock Special Price $248.00 Regular Price $964.10Dir readng glass flwmtr, 316 SS float, flow rate 3.8 SCFH air. Learn More -
Dwyer Instruments SFI-700-3/4 Sight Flow Indicator, 3/4" body 3.688" L x 2.250" H, brass
Order #: SFI-700-3/4 Mfg #: SFI-700-3/4 Availability: In stock $731.80Sight Flow Indicator, 3/4" body 3.688" L x 2.250" H, brass Learn More -
Dwyer Instruments SFI-300-1/2 Sight Flow Indicator, 1/2" body 4.063" L x 2.750" D x 2.563" H
Order #: SFI-300-1/2 Mfg #: SFI-300-1/2 Availability: In stock $294.55Sight Flow Indicator, 1/2" body 4.063" L x 2.750" D x 2.563" H Learn More -
Dwyer Instruments SSV-B4N4 Brass Solenoid Valve 1/2",0.5-8 bar,nbr seal, 24 VDC
Order #: SSV-B4N4 Mfg #: SSV-B4N4 Availability: In stock $126.85Brass Solenoid Valve 1/2",0.5-8 bar,nbr seal, 24 VDC Learn More -
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Dwyer Instruments RMV-2-3 Rate-Master Dial-Type Flowmeter 0-10 GPM water, 1" female NPT
Order #: RMV-2-3 Mfg #: RMV-2-3 Availability: In stock Special Price $643.23 Regular Price $1,872.00Rate-Master Dial-Type Flowmeter 0-10 GPM water, 1" female NPT Learn More -
Dwyer Instruments VFA-3-SS Series VF Visi-Float Flowmeter Range .6-5 SCFH air
Order #: VFA-3-SS Mfg #: VFA-3-SS Availability: Please contact Transcat Customer Service for availability. Series VF Visi-Float Flowmeter Range .6-5 SCFH air Learn More -
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Dwyer Instruments PR-2-P2 Gas/Differential Pressure Sw. man. reset, SPST NC, 0.5-5 psig
Order #: PR-2-P2 Mfg #: PR-2-P2 Availability: In stock Special Price $376.42 Regular Price $986.75Gas/Differential Pressure Sw. man. reset, SPST NC, 0.5-5 psig Learn More -
Dwyer Instruments 1950 Differential Pressure Switch 24VDC,.4-1.6"H2O
Order #: 1950G-1-B-24-NA Mfg #: 1950G-1-B-24-NA Availability: In stock $564.60Differential Pressure Switch 24VDC,.4-1.6"H2O Learn More -
Dwyer Instruments STC371 Pipe-Mount Bimetal Surface Thermom.,70-500F,1"-1-5/8" pipe
Order #: STC371 Mfg #: STC371 Availability: In stock $63.05Pipe-Mount Bimetal Surface Thermom.,70-500F,1"-1-5/8" pipe Learn More -
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Dwyer Instruments A-2026-2 Stainless Steel Fitting tee, 1/4" FNPT
Order #: A-2026-2 Mfg #: A-2026-2 Availability: In stock Special Price $5.15 Regular Price $9.45Stainless Steel Fitting tee, 1/4" FNPT Learn More -
Dwyer Instruments SGY-D11222N-GF SS Industrial Pressure Gauge 2.5",1/4"npt,1000psi,bott.,glyc
Order #: SGY-D11222N-GF Mfg #: SGY-D11222N-GF Availability: Please contact Transcat Customer Service for availability. SS Industrial Pressure Gauge 2.5",1/4"npt,1000psi,bott.,glyc Learn More -
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Dwyer Instruments OP-E-2 1.5"Orifice Plate Flowmeter 100"H2O
Order #: OP-E-2 Mfg #: OP-E-2 Availability: In stock Special Price $268.57 Regular Price $505.401.5"Orifice Plate Flowmeter 100"H2O Learn More -
Dwyer Instruments LCI408-00 LCI408 Panel Meter Indicator 1/8 DIN, universal input
Order #: LCI408-00 Mfg #: LCI408-00 Availability: In stock $1,029.15LCI408 Panel Meter Indicator 1/8 DIN, universal input Learn More -
Dwyer Instruments 16L2033 Ser. 16L Temp/Proc Lim. Control N.O Relay output A & B
Order #: 16L2033 Mfg #: 16L2033 Availability: In stock $499.55Ser. 16L Temp/Proc Lim. Control N.O Relay output A & B Learn More -
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Dwyer Instruments 8904 Integral Vane Thermo-Anemometer
Order #: 8904 Mfg #: 8904 Availability: In stock Special Price $75.39 Regular Price $157.75Integral Vane Thermo-Anemometer Learn More -
Dwyer Instruments DPG-110 Digitl.Press.Gage,3000PSI,0.25% FS,316L SS,1/4"NPTM
Order #: DPG-110 Mfg #: DPG-110 Availability: In stock $348.00Digitl.Press.Gage,3000PSI,0.25% FS,316L SS,1/4"NPTM Learn More -
Dwyer Instruments DPG-104 Dig.Press.Gage,50.00PSI,0.25%FS (3.515kg/cm?,3.448 bar,101.8"H
Order #: DPG-104 Mfg #: DPG-104 Availability: In stock $348.00Dig.Press.Gage,50.00PSI,0.25%FS (3.515kg/cm?,3.448 bar,101.8"H Learn More -
Dwyer Instruments DPG-102 Dig.Press.Gage,15.PSI,1/4"NPTM, 3",316L SS,0.25%FS
Order #: DPG-102 Mfg #: DPG-102 Availability: In stock $348.00Dig.Press.Gage,15.PSI,1/4"NPTM, 3",316L SS,0.25%FS Learn More -
Dwyer Instruments 1950-10-2F EP Differential Pressure Switch 3/11"WC,UL/FM/CSA,SPDT
Order #: 1950-10-2F Mfg #: 1950-10-2F Availability: In stock $355.55EP Differential Pressure Switch 3/11"WC,UL/FM/CSA,SPDT Learn More -
Dwyer Instruments 1950 EP/WP Diff.Press.Switch .4" to 1.6"WC
Order #: 1950-1-2F Mfg #: 1950-1-2F Availability: In stock $355.55EP/WP Diff.Press.Switch .4" to 1.6"WC Learn More
