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Buy, sell, trade-in or rent Series 475 Test equipment .


Avionteq offers both new and refurbished or used Series 475 Mark III Handheld Digital Manometer for sale. All refurbished equipment are thoroughly tested and come with our warranty and fresh calibration certificate (when required). You can also sell your excess / surplus Series 475 or receive trade-in credit towards purchase of other test equipment.


Series 475 Features and Specifications *


The Dwyer Series 475 Mark III Handheld Digital Manometer is easy to use and housed in a durable extruded aluminum case with its solid state circuitry mounted on a tough fiberglass epoxy circuit board. It is designed for field calibration, monitoring or trouble shooting HVAC systems, clean rooms or a wide range of other low pressure pneumatic systems. The test instrument measures positive, negative or differential pressures of air and natural gases in ranges from 1" w.c. (0.249 kPa) to 150 psid (10.34 bar). It is equipped with easy to read digital display which makes it the ideal test instrument for plant engineers.


  • Size: 6-9/16" H x 2-13/16" W x 29/32" D
  • Service: Air and combustible, compatible gases.
  • Pressure Hysteresis: +/-0.1% of full scale.
  • Accuracy: +/-0.5% F.S., 60 to 78°F (15.6 to 25.6°C); +/-1.5% F.S. from 32 to 60°F and 78 to 104°F (0 to 15.6°C and 25.6 to 40°C).
  • Pressure Limits: See chart.
  • Temperature Limits: 32 to 104°F (0 to 40°C).
  • Storage Temperature Limits: -4 to 176°F (-20 to 80°C).
  • Display: 0.5" liquid crystal. 3-1/2 digits.
  • Power Requirements: 9 volt alkaline battery (Up to 100 hours of operation). Battery not connected.
  • Weight: 10.8 oz. (306 g).
  • Resolution: See chart.
  • Connections: Two barbed connections for use with 1/8" (3.18 mm) or 3/16" (4.76mm) I.D. tubing. Two compression fittings for use with 1/8"(3.18 mm) I.D. x 3/16" (4.76 mm) O.D. tubing for 475-7-FM and 475-8-FM.
  • Agency Approvals: FM, CE. 

*  Series 475 technical specifications is provided for reference only. Avionteq cannot ensure accuracy of the technical specifications presented herein. The technical data may not relate entirely to all model and versions of the Series 475 such as the models sold by Avionteq.

Van Nuys Airport (VNY), Van Nuys, CA 91406 USA