• Replace your handheld meters with your phone/tablet by using the HVAC Mobile Meter® Software App. Click HERE for More Info

  • New ball valves, air quality, and test equipment products have just been released. Click HERE to Browse

  • We have expanded our hours of operation... new customer service/tech support hours are 7am-7pm CST. Click HERE for More Info

  • "BIG Savings!" Click HERE to view available overstock inventory.

  • The future of test equipment has arrived! Announcing the release of the UHH2 Universal Handheld Test Instrument. To Learn More, Click HERE

  • Dwyer's 2016 Instrumentation and Controls Catalog has arrived! Click HERE to request your print or CD version.