Manifold gauge sets, sometimes called HVAC gauges or refrigeration gauges, diagnose and repair refrigerators or cooling systems. They measure both low- and high-refrigerant pressure with either digital or mechanical gauges to troubleshoot issues such as leaks or to help when evacuating and recharging a system.

Wireless A/C inspection sensors are color-coded clamp-on units that measure and record the outside air temperature and relative humidity and compare it to the air exiting the vents in the vehicle interior. They provide a quick analysis of the performance of the A/C system. Information is immediately transmitted to a tablet or smartphone, which displays detailed reports that wirelessly export to email or printers.