Leak Detectors & Test Instruments

Mastercool® is the leading manufacturer of professional quality A/C manifold gauge sets. Our manifold gauge sets are constructed of the finest materials and machined with precision to the highest quality standards. At Mastercool, every manifold we build is built to last. Features: 3-1/8" (PSI, °F) gauges 1/4" MFL Solid extruded aluminum body Free-floating piston type valves reduce O-ring wear Extra access port for vacuum line Silicone dampened gauges smooth out needle movement Gauges can be easily recalibrated in the field to maintain accuracy An extra-large sight glass for visual ...

A good quality vacuum pump is an integral tool for complete A/C service. Mastercool® vacuum pumps are durable and time-tested. They stand up to the most grueling conditions and will provide years of reliable service. Mastercool® offers a complete selection of pumps. Regardless of your service requirements, Mastercool® has a model for your applications. Features: New U.S. Design Stronger motor Gas ballast valve helps prevent oil contamination caused by high moisture Easily removable vapor discharge/oil fill port. Contains internal check valve to prevent escape of liquid oil Large oil level ...

Mastercool® is the leading manufacturer of professional quality A/C manifold gauge sets. Our manifold gauge sets are constructed of the finest materials and machined with precision to the highest quality standards. At Mastercool, every manifold we build is built to last. Features: 3-1/8" (PSI, °F) gauges 1/4" MFL Solid extruded aluminum body Free-floating piston type valves reduce O-ring wear Extra access port for vacuum line Silicone dampened gauges smooth out needle movement Gauges can be easily recalibrated in the field to maintain accuracy An extra-large sight glass for visual ...

Features: Equipped with our exclusive oil mist free exhaust port Sure-Grip handle, ergonomically designed for superior comfort and portability Reinforced base provides extreme shock resistance Air cooled motor design allows for operation under high temperature conditions Pump runs with extremely high ultimate vacuum and low noise Accessible oil drain port & sight glass make both oil maintenance and accuracy easy Built-in device eliminates oil mist and an oil-gas separator at the air exhaust outlet prevents oil contamination in the air exhaust

Mastercool® introduces its new compact hand-held digital vacuum gauge with Bluetooth® wireless technology which combines the most advanced features to provide quick and accurate responses every time. Utilizing a state-of-the-art glass beaded thermistor and temperature compensation, Mastercool® is offering the latest technology to the HVAC/R technician. Included in this package will be the capability to download our free Mastercool Connect app. This will allow for full mobility as activity can be easily viewed on all compatible hand-held smart devices. Features: Sintered bronze inlet ...