Freon refers to multiple colorless, nonflammable liquids that evaporate when exposed to the air. Chlorofluorocarbon, hydrofluorocarbon and hydrochlorofluorocarbon are the three main types of Freon. Read More…
Leading Manufacturers
Agilent Technologies: Vacuum Products Division
Lexington, MA | 800-882-7426Total vacuum and leak detection solutions, including VS Series Helium Mass Spectrometer Leak Detectors. We provide industry-leading mass spectrometer and selective ion pumping leak detectors in portable, mobile and component models, as well as primary, high and ultra-high vacuum pumps.

Dorlen Products, Inc.
Milwaukee, WI | 414-282-4840Dorlen Products specializes in water leak detection services and products like water leak detectors, Ceiling Guard, Water Alert, plus Water Alert and Sensor Cable. These products come with a five-year warranty. We have been providing high-quality products and service since 1975. For more information, call Dorlen or visit our website!

Pfeiffer Vacuum, Inc.
Nashua, NH | 800-248-8254The Pfeiffer Vacuum ASM 340 performs helium or hydrogen leak detection in vacuum and sniffer modes. It detects leaks to 5x 10-12 mbar l/s in vacuum mode and 5x10-9 mbar l/s in sniffing mode. This durable, high performance leak detector offers I/O interface, SD memory card and wireless remote operation up to 100 meters.

Perma-Pipe, Inc.
Niles, IL | 847-966-2190PermAlert™ is the leading leak detection technology provider since 1988. As a division within the PERMA-PIPE, Inc. company, we work closely with clients across the globe to address their leak detection challenges and ensure maximum protection of their assets. PerrmAlert design, manufacture, and service a range of leak detection systems for a variety of applications. Our commitment to innovation allows us to deliver the best and most reliable solution for our clients.

Freon was once the common refrigerant in freezers, refrigerating systems and other cooling systems. It is also found in commercial and industrial air conditioners, automotive cooling systems, firefighting systems, industrial metal cleaners and as an aerosol propellant, although only in ones built before the late 1970's.
While use of Freon has diminished due to associated environmental damage, many older appliances still use Freon and can be costly to repair. Freon leak detectors are useful in identifying leaks early on to avoid further damage, as are other leak detectors targeted toward other refrigerant gases such as halogen or helium.
A small amount is not seriously threatening to an individual's health or possessions, but in large amounts Freon is chemically altered when exposed to sunlight and ends up depleting the ozone and adding to the greenhouse effect. Since this discovery in the 1970's, many companies have ceased using Freon in air conditioners and refrigerators, but old pieces are still around in all sorts of industrial, commercial and consumer product contexts.
Therefore, checking for Freon leaks is vital for the earth as well the health of individuals who may be breathing it in and developing health problems as a result.
Appliances using Freon often have a complex system through which the liquid or gas flows. A Freon leak can be hard to find, making a portable leak detector most practical. Strict laws regarding Freon emissions may require industrial cooling systems be monitored with a fixed detection system. Three of the most common types of Freon leak detectors are refrigerant leak detectors, ultraviolet dye leak detection kits and electronic leak detectors.
Refrigerant leak detectors contain a halide torch that has a flame that changes color depending upon the refrigerant present. Dye kits are injected into a system so that the Freon becomes visible and the leak more easily found. The electronic system involves a heated diode or a corona discharge, both of which are normally hand held sensors.
It is essential to prevent Freon leaks, since they significantly increase ozone depletion and when inhaled in large amounts can cause heart problems in humans.