Instant response. No guesswork. The new testo 51x leak detector range provides HVAC/R and heating professionals with fast, reliable leak detection for gas and refrigerant applications. Designed for everyday service, maintenance and safety-critical work, the range delivers response and recovery times of under two seconds, helping users locate leaks quickly and accurately.
With three models to choose from, the range covers focused gas detection, dedicated refrigerant detection and a flexible 2-in-1 solution for both applications. Features such as robust flexible probes, clear display options, audible and vibration alarms, and user-replaceable sensors help engineers work efficiently in tight spaces and demanding environments. For the highest level of sensitivity and safety, the testo 515 Ex detects leaks down to 1 g/a and is ATEX certified for use in A3 and A2L environments.
testo 513: Gas leak detector
The testo 513 provides fast, reliable detection of methane, propane, butane and hydrogen leaks in heating and maintenance applications. With 3 g/a sensitivity, a response time of under two seconds and a flexible gooseneck, it makes pinpointing leaks simple—even in hard-to-reach areas. Numeric and bar graph displays, automatic zeroing and a user-replaceable sensor support efficient everyday use.
testo 514: Refrigerant leak detector
Built for air conditioning, refrigeration and heat pump systems, the testo 514 detects all common refrigerants without requiring refrigerant selection. Its 3 g/a sensitivity, response time of under two seconds and flexible probe support fast, accurate leak detection. Tested in accordance with DIN EN 14624, it is a reliable solution for F-Gas servicing and maintenance work.
testo 515 Ex: Combination gas and refrigerant leak detector
The testo 515 Ex combines refrigerant and flammable gas detection in one ATEX-certified instrument. Interchangeable sensors, sensitivity down to 1 g/a and advanced fan suction enable fast, precise detection in demanding applications. A colour display with numeric, bar graph and trend curve modes gives professionals clear, confident control over every measurement.
Find out more: https://www.testo.com/en-UK/products/51x
