Gauges

HVAC gauges are diagnostic tools used to measure pressure levels of gases and liquids, specifically refrigerants, within HVAC systems. LONG PartsPros stocks analog gauges, digital gauges, and universal manifold gauges that are compatible with R-22, R-410A, R-134a, and other refrigerants found in residential or commercial systems....Read more

Gauges are a necessary part of any HVAC service and are used in routine maintenance by service technicians. HVAC gauges help technicians diagnose system performance, detect leaks, and ensure proper refrigerant charge by measuring high and low side refrigerant pressure. Overcharging or undercharging refrigerants can damage other HVAC components like compressors and reduce the system’s efficiency. Due to the various environmental hazards of refrigerant, ensuring proper charge is a critical servicing aspect for EPA-compliance.

Without HVAC gauges, HVAC technicians may not be able to accurately diagnose a system, which can lead to increased downtime and higher service costs. It’s important that technicians calibrate their HVAC gauges regularly to make sure they’re providing accurate readings and preventing incorrect refrigerant charging. If the gauge is digital, they may also require battery replacement or firmware updates, so be aware of this extra maintenance step.

Browse our inventory of durable, OEM-compatible HVAC manifold gauges and analog gauges for precision-readings and service convenience by trusted brands like York, Sporlan Controls, and Weksler. Refrigerant is crucial to the efficiency of HVAC systems so you’ll want the right gauge to make sure it’s accurately charged or not leaking to prevent safety hazards.

Compare Selected