JB Industries
JB Industries QC-G856 Red High-Side Gauge 500 psi R-22 R-134A R-404A
High-side test gauge reads up to 500 psi for R-22, R-134A and R-404A with ±1.00 % accuracy
- ColorRed
- High-side gauge covers R-22, R-134A and R-404A systems
- 500 psi working pressure handles demanding refrigerant checks
- ±1.00 % accuracy gives reliable pressure readings
- Red dial colour identifies high-side gauge instantly
- 1/4 in connection fits standard HVAC service hoses
High-Side Gauge for R-22, R-134A, R-404A
The JB Industries QC-G856 is a red high-side gauge designed for quick pressure checks on large refrigeration systems and refrigerant tanks. It operates at a working pressure of 500 psi and connects via a standard 1/4 inch fitting. The dial measures 3 1/8 inches in diameter and delivers an accuracy of +/- 1.00 percent. This new instrument is built for HVAC professionals handling common refrigerants.
Suits technicians checking high-side pressure
This gauge suits technicians who need a dedicated high-side indicator for R-22, R-134A and R-404A systems. It is not a manifold set and cannot measure low-side or compound pressures. Buyers who require a full diagnostic manifold or gauges calibrated for other refrigerants should look at different equipment. The single-function design limits use to high-side spot checks only.
Accuracy of +/- 1.00 percent at 500 psi
The critical specification is the gauge accuracy of +/- 1.00 percent across the 500 psi range. This tolerance determines whether readings are precise enough for charging decisions on large systems. Verify that your service procedures accept this accuracy class before purchase. The 1/4 inch connection and red colour coding complete the part identification.
Highlights
- High-side gauge covers R-22, R-134A and R-404A systems
- 500 psi working pressure handles demanding refrigerant checks
- ±1.00 % accuracy gives reliable pressure readings
- Red dial colour identifies high-side gauge instantly
- 1/4 in connection fits standard HVAC service hoses
Specifications
| Brand | JB INDUSTRIES |
|---|---|
| Color | Red |
Questions about this item
Should I pick the red gauge for R-22, R-134A and R-404A or look for a different colour?
The red dial is calibrated for R-22, R-134A and R-404A with a 500 psi working range and ±1.00 % accuracy.
What does the 500 psi rating mean when I hook the gauge to a live system?
It shows the maximum continuous pressure the bourdon tube can read safely on the high side of those refrigerants.
How does the 1/4 in connection affect the pressure reading on a quick check?
The 1/4 in flare fitting threads straight onto service ports or tank valves without adapters, so the 500 psi scale reads directly.
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