testo 513 & 514 – Professional Leak Detectors

Instant Response

Advanced fan technology provides a response and recovery time of less than 2 seconds.

Maximum selectivity

With a sensitivity as low as 3 g/a, even the smallest leaks can be detected.

Full Control

Multiple display modes, including a trend graph, as well as audible and vibrating alarms.

For professional users—regardless of the application.

Cold
Heat Pumps
Gas-Fired Heating Systems

Cold

Reliable Leak Detection for Refrigeration and Air Conditioning

Fast and accurate leak detection is essential for efficient operation, safety, and compliance with applicable regulations.

Heat Pumps

Leak Detection for Modern Heat Pumps

With the increasing use of A2L refrigerants and increasingly complex systems, heat pump installations require reliable, fast, and safe leak detection.

Gas-Fired Heating Systems

Reliable Leak Detection for Gas-Fired Heating Systems

When servicing boilers, gas lines, and heating systems, rapid leak detection and reliable measurement results are crucial for safe and efficient maintenance.

The right leak detector for every job.

testo 514

Refrigerant leak detector with fast response, designed for refrigeration, air conditioning, and heat pump systems.

testo 513

Specialized leak detector for flammable refrigerants used in the service and maintenance of heating systems.

testo-513-heating-leak-detection-5_Original

Selective. Fast. Reliable.

Detects leaks as low as 3 g/a
Active suction function for leak detection with a response time of less than 2 seconds
Easily reach hard-to-access measurement points with the flexible gooseneck
Easily replace the sensor yourself when needed

testo-514-refrigeration-leak-detection-1_Original

Full control.

See. Understand. Act.

Numerical display and bar chart for clear leak indication
Trend curve for easy analysis of leak progression
Clear color display, plus audible and vibration alarms for quick assessment

Coming soon!

ATEX-certified combination leak detector for gases and refrigerants

The testo 515 Ex combines ATEX-certified safety with leak detection down to 1 g/year. Designed for complex systems with refrigerants and flammable gases, even in potentially explosive areas. With the testo 515 Ex, you can quickly and efficiently locate leaks during service, installation, and maintenance in applications such as refrigeration, heating, and industrial systems. The interchangeable sensors allow the instrument to be easily adapted to the task at hand. The testo 515 Ex will be launched at a later date—more information to come.