Description
The Dwyer 490A-4-HKIT is a complete 0–100 PSI digital manometer kit engineered for HVAC technicians and service professionals who demand accurate, reliable pressure measurements in the field. Combining the trusted performance of Dwyer’s Series 490A digital manometer with a comprehensive accessory kit, this package delivers everything you need to diagnose, commission, and troubleshoot HVAC systems right out of the box.
Product Overview
The 490A-4-HKIT is built around Dwyer’s Series 490A handheld digital manometer, configured for a 0–100 PSI measurement range. The included kit (HKIT) bundles essential hoses, fittings, and connection accessories to get you up and running immediately — no hunting for compatible add-ons required.
Key Features
- Measurement range: 0–100 PSI for a wide variety of HVAC pressure testing applications
- Digital display for clear, easy-to-read pressure readings in the field
- Complete kit configuration includes hoses and fittings for immediate use
- Compact, handheld design ideal for field service and commissioning work
- Durable Dwyer construction built to withstand demanding job-site conditions
- Suitable for measuring gas pressure, air pressure, and system pressures in HVAC applications
- Lightweight and portable for easy transport between job sites
Applications
- HVAC system commissioning and startup
- Gas pressure measurement and verification
- Air system pressure diagnostics
- Duct static pressure testing
- Refrigeration and mechanical system pressure checks
- Preventive maintenance and troubleshooting
Why Choose Dwyer
Dwyer Instruments has been a trusted name in measurement and control instrumentation for decades. The Series 490A manometer line is widely used by HVAC professionals for its accuracy, ease of use, and rugged reliability. The HKIT configuration ensures you have the right accessories on hand for a broad range of pressure measurement tasks.
Specifications
- Brand: Dwyer Instruments
- Model: 490A-4-HKIT
- Measurement Range: 0–100 PSI
- Display Type: Digital
- Kit Includes: Manometer unit with hose and fitting accessories









