Mid-West Instrument Differential Pressure Gauges

1.800.648.5778
Made in the USA
  • Home
  • Differential PressureGauges, Switches & Transmitters
    • Differential Pressure Overview
    • Selection Guide – Differential Pressure – Product Definition
    • High Accuracy Gauges (0.50% & 1% Full Scale)
      • Model 105
      • Model 106
      • Model 109
      • Model 115
      • Model 116
    • Piston Type Gauges – Liquids
      • Model 120
      • Model 121
      • Model 122
      • Model 123
      • Model 124
    • Diaphragm Type Gauge – Gases & Liquids
      • Model 130
      • Model 140
      • Model 142
      • Model 522C
      • Model 555A
    • Tank Level Type Gauges
      • Model 114
      • Model 115
      • Model 116
    • Hazardous Locations Differential Pressure Gauges & Switches
      • Division 1 / ATEX
        • Model 120 Div 1
        • Model 130 Div 1
        • Model 140 Div 1
        • Model 220 Div 1 / ATEX
        • Model 240 Div 1 / ATEX
      • Division 2
        • Model 120 Div 2
        • Model 121 Div 2
        • Model 140/142 Div 2
    • OEM Indicators
      • Model 126
      • Model 127
      • Model 146
      • Model 444
      • Model 555
    • Differential Pressure Switch & Relay
    • Differential Pressure Transmitters
      • Model 114
      • Model 121
      • Model 124
      • Model 220
      • Model 140
      • Model 142
      • Model 240
    • Flow Measurement Application Models
      • Selection Guide
      • Precision Flow Test Kits
      • In-Line Averaging Pitot Tube- Model 300
    • Differential Pressure Gauge Accessories
      • Diaphragm Seals
      • Pulsation Dampeners- Model 150
      • Pressure Limiting Valves – Model 200
      • Stainless Steel Manifolds 3 & 5 Valve
  • Backflow Test Kits
  • Product FinderUse our smart search
  • Applications
    • Backflow Prevention
    • Catalytic Reduction
    • Cryogenic Tank Level Measurement
    • Filter Monitoring
    • Gauge Pressure Monitoring
    • Heat Exchanger in HVAC Systems
    • Irrigation Filtration
    • Liquid Tank Level Measurement
    • Natural Gas Filtration
    • Pipe Flow Rate Monitoring and Control
    • Reverse Flow Detection
    • Self Cleaning Filter
    • Strainer Monitoring
  • Chemical Compatibility Database
  • Product Documents & 3rd Party Certifications
    • General Sales Information
      • Company Brochure
      • Quick Reference Guide
      • Full Product Catalog
      • Terms & Conditions of Sale
      • Return Authorization Policy
      • RGA Request Form
    • Product Bulletins – IOM’s – Drawings
    • Third Party Certifications
      • Quality Management Certificate
      • EX (ATEX) Certificate
      • IECEx Certificate
      • Class I Div 1/Class I Div 2 Certifcate
      • Class I Div 1, Class I Div 2 Certicate (Models 220/240)
      • Industrial Control Equipment Certificate (Models 106,107,116,117)
    • CRN and NACE Reference Materials
      • CRN Reference
      • NACE Certification Reference
    • Notices
      • RoHS Statement
  • Educational Resources
    • Articles – Technical Blogs
    • Chemical Compatibility Database
    • DP Gauge Educational Articles
      • Gauge Mount & Installation Options
      • Piston vs. Diaphragm Differential Pressure Gauges
      • Dial Scales and Custom Dial Scale Options
      • Tips to Simplify Your DPI Panel Installation
      • Why Should I Use Differential Pressure Gauges?
    • DP Switch Educational Articles
      • Reed Switches General Info
      • Switch Options (SPST, SPDT)
      • Ratings (Power / Loads)
      • Switch Hysteresis & Ratings
      • Pressure Switch Set Point & Adjustability Options
  • About Us
    • Latest News & Articles
    • About Us Overview
  • Contact Us
    • Contact Information
    • Differential Pressure Gauge Distributors
    • Backflow Distributors & Service Centers
    • RGA Request Form

Caltrols Arabia Company

February 6, 2026

« Proyectos e Instrumentos, SA de CV

Recent Posts
  • Heat Exchanger Differential Pressure: Detecting Fouling, Tube Leaks, And Contamination
  • Reverse Flow Alarm Solutions with Center-Zero Differential Pressure Gauges
  • Annual Backflow Prevention Testing: A Practical Guide to Compliance and Documentation
  • Pump Cavitation Warning Signs and the Value of Differential Pressure Measurement
  • Liquid Filled Gauge Case Benefits: Steadier Readings In Vibrating Environments
Recent Posts
  • Heat Exchanger Differential Pressure: Detecting Fouling, Tube Leaks, And Contamination
  • Reverse Flow Alarm Solutions with Center-Zero Differential Pressure Gauges
  • Annual Backflow Prevention Testing: A Practical Guide to Compliance and Documentation
  • Pump Cavitation Warning Signs and the Value of Differential Pressure Measurement
  • Liquid Filled Gauge Case Benefits: Steadier Readings In Vibrating Environments
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Categories
  • Backflow Prevention
  • Best Practice
  • Catalytic Reduction
  • Chemical Compatibility
  • Cryogenic Tank Level Measurement
  • Diaphragm Seals
  • Differential Pressure Product Selection Guide
  • Differential Pressure Transmitters
  • Digital Backflow Test Kit Model 855
  • Flow Applications
  • Gauge Pressure Monitoring
  • Hazardous Locations Differential Pressure Gauges & Switches
  • High Accuracy Pressure Gauge
  • How To
  • How to Field Adjust a DP Gauge Switch
  • Informational
  • Irrigation Filtration
  • Model 109
  • Model 150
  • Model 200
  • Natural Gas Filtration
  • Pipe Flow Rate Monitoring and Control
  • Piston Type Gauges
  • Precision Flow Test Kits
  • Pressure Limiting Valves
  • Product Comparisons
  • Pulsation Dampeners
  • Ratings (Hysteresis)
  • Ratings (Power / Loads)
  • Strainer Monitoring
  • Tips to Simplify Your DPI Panel Installation
  • Uncategorized
  • Why Should I Use Differential Pressure Gauges?
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Mid-West Instrument Differential Pressure Gauges

1.800.648.5778

  • Differential Pressure Gauges, Switches & Transmitters
    • Differential Pressure Overview
    • Selection Guide – Differential Pressure – Product Definition
    • High Accuracy Pressure Gauge
    • Piston Type Gauges – Liquids
    • Diaphragm Type Gauge – Gases & Liquids
    • Tank Level Type Gauges
    • Hazardous Locations Differential Pressure Gauges & Switches
      • Division 1 / ATEX
        • Model 120 Div 1
        • Model 130 Div 1
        • Model 140 Div 1
        • Model 220 Div 1 / ATEX
        • Model 240 Div 1 / ATEX
      • Division 2
        • Model 120 Div 2
        • Model 121 Div 2
        • Model 140/142 Div 2
    • OEM Indicators
    • Differential Pressure Switch & Relay
    • Differential Pressure Transmitters
    • Flow Measurement Application Models
      • Selection Guide
      • Precision Flow Test Kits
      • In-Line Averaging Pitot Tube – Model 300
    • Differential Pressure Gauge Accessories
      • Diaphragm Seals
      • Pulsation Dampeners- Model 150
      • Pressure Limiting Valves – Model 200
      • Stainless Steel Manifolds 3 & 5 Valve
  • Backflow Test Kits
  • Applications
    • Irrigation Filtration
    • Heat Exchanger in HVAC Systems
    • Natural Gas Filtration
    • Self Cleaning Filter
    • Strainer Monitoring
    • Backflow Prevention
    • Pipe Flow Rate Monitoring and Control
    • Reverse Flow Detection
    • Cryogenic Tank Level Measurement
    • Liquid Tank Level Measurement
    • Gauge Pressure Monitoring
  • Tech Info
    • Chemical Compatibility
    • Latest News & Articles
    • Articles Overview
      • Switch Considerations
        • Reed Switches General Info
        • Switch Options (SPST, SPDT)
        • Ratings (Power / Loads)
        • Switch Hysteresis & Ratings
        • Pressure Switch Set Point & Adjustability Options
      • Gauge Mount & Installation Options
      • Piston vs. Diaphragm Differential Pressure Gauges
      • Dial Scales and Custom Dial Scale Options
      • Tips to Simplify Your DPI Panel Installation
      • Why Should I Use Differential Pressure Gauges?
    • Quick Reference Guide
    • Literature – Technical Resources
    • Notices
      • RoHS Statement
    • Quality
      • Quality Management Certification
  • About Us
    • About Us Overview
    • Latest News & Articles
  • Contact Mid-West
    • Contact Information
    • Distributors
    • Privacy Policy
  • Cookie Policy (EU)
Product Finder

Phone: (586) 254-6500

Fax: (586) 254-6509

6500 Dobry Dr.
Sterling Heights, Michigan 48314

Warning: Cancer and Reproductive Harm – www.P65Warnings.ca.gov
For complete information on Proposition 65, please read this informational PDF or visit www.p65warnings.ca.gov

Mid-West Instrument products are made in the USA from USA and imported parts

© 2018 Mid-West Instrument
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