"The most comprehensive source for Automotive Tools & Equipment" Model: 16455 TruTrack can identify... Refrigerant leaks Pressurized gas leaks Vacuum leaks Dry nitrogen gas leaks Steam leaks Failing solenoids, valves, bearings...and much more. Easy to use - Just put on the headset, adjust the sensitivity level, and place the sensor near the suspected problem area; you can use the sensor alone or with one of the probes. Positive Identification - You hear the sound of the leak in the headset with no beeps or squeals; the sound is clearly the loudest when you are near the leak. Accurate - Wind, stray gases or other contaminants will not trigger a false alarm; the unit suppresses most background noises. Dependable - There are no clogged tips to clean or sensors to replace to get accurate readings. Versatile - Ideal for a wide range of service and preventive maintenance applications. Saves time and money - Pinpoints leaks quickly and accurately; can be used to prevent downtime by identifying potential component failure; hears tell-tale sounds without tearing down the equipment. Related "Robinair" Product Information Model 16455AC Leak Detector - Product Page AC Machines - Index Page Full Product Listing - Index Page