Testo 513 Gas Leak Detector with Flexible Probe
Testo 513 Gas Leak Detector with Flexible Probe is designed to detect flammable gases such as methane, propane, butane and hydrogen. It is suited to leak testing on residential and industrial gas boilers as well as similar systems. High sensitivity and a flexible probe help users locate even small leaks in areas that may be difficult to reach.
Fast response and recovery times of less than two seconds help make routine leak checks efficient. The instrument provides both optical and audible leak alarms, giving the user clear warning when gas is detected. Selectable numeric and bar graph display modes also allow readings to be viewed in the format best suited to the task.
For convenient everyday use, the Testo 513 Gas Leak Detector with Flexible Probe combines automatic zeroing with manual zero adjustment. Its sensor can be replaced by the user, helping to reduce downtime and ongoing operating costs. The instrument uses three AA alkaline batteries and provides a stated battery life of 10 hours.
Key Benefits
- Detects methane, propane, butane and hydrogen for a range of flammable gas leak checks.
- High sensitivity supports detection of small gas leaks, with a stated high sensitivity level of 3 g/a.
- Response and recovery times of less than two seconds support fast checking during routine work.
- The 330 mm probe length with sensor helps users reach test points that are difficult to access.
- A flexible and robust gooseneck probe can be positioned around components and restricted areas.
- Optical and audible alarms provide clear indication when a leak is detected.
- Numeric and bar graph display modes give users a choice of how detection information is viewed.
- Automatic zeroing supports quick pinpoint location, while manual zeroing allows individual adjustment.
- The user-replaceable sensor helps minimise downtime when sensor replacement is required.
- A five-year sensor life under normal usage supports long-term day-to-day operation.
Common Applications
Testo 513 Gas Leak Detector with Flexible Probe is suitable for a range of testing, maintenance and inspection tasks, including:
- Gas leak detection on residential gas boilers.
- Gas leak detection on industrial gas boilers.
- Leak checking on similar gas systems.
- Locating methane leaks.
- Locating propane leaks.
- Locating butane leaks.
- Locating hydrogen leaks, including forming gas.
Why Choose This Model?
The Testo 513 Gas Leak Detector with Flexible Probe combines high gas sensitivity, a flexible 330 mm probe, fast response and recovery, selectable display modes and automatic zeroing in a compact handheld instrument.







