Refrigeration Digital Manifold Gauge Set for Air ConditioningRefrigerator Digital Gauges HVAC with Double Pressure&Temp Test Manifold Digital, HVAC Gauges with Hose, Temperature Control Clip, Toolbox

This digital manifold gauge set for air conditioning and refrigerator works well, although some users reported inaccuracies, broken clamps, and durability issues with repeated use. The temperature sensors need to be placed directly on the pipe for accurate readings, and the product supports 4pcs 1.5V AA batteries. It can read superheat and subcooling, as well as evaporation and condensation temperature and pressure tests, pressure leakage tests, and vacuum measurements. The instruction manual is not very good, but HVAC technicians using this equipment shouldn't need it anyway. Overall, this product is a good value for the money and suitable for DIY enthusiasts who want to quickly diagnose their refrigeration systems.