Working leak detection in or near a potentially explosive atmosphere calls for an instrument built for that environment from the ground up, not adapted to it — which is exactly what ATEX certification on the testo 515 Ex delivers. It detects leak rates as low as 1 g/a, with response and recovery times under 2 seconds thanks to advanced fan-assisted suction, so a technician gets a fast, confident reading rather than waiting out a slow sensor.
The flexible gooseneck probe reaches into tight or awkward fittings safely, and the colour display — offering numeric, bar graph, and trend curve views — makes it straightforward to watch a leak's progression and pinpoint its exact source rather than a general area. Interchangeable sensors give the 515 Ex genuine 2-in-1 flexibility: fitted with the gas sensor it detects methane, propane, butane, and hydrogen, and with the additional refrigeration sensor it covers CFCs, HCFCs, HFCs, HFOs, and blends including A2L.
Ideal For
ATEX certification isn't a nice-to-have on this instrument — it's what makes leak detection in a potentially explosive atmosphere possible at all, and the 1 g/a sensitivity catches leaks a lower-spec detector would miss entirely. Being able to swap between gas and refrigerant sensors means one instrument covers two distinct job types, rather than carrying separate detectors for each.
Order the Testo 515 Ex Combination Leak Detector - Gas online today.
| Manufacturer | Testo |
|---|---|
| Model | 515 Ex |
| Article Number | 0563 1515 |
| Gases Detected (Gas Sensor) | Methane, Propane, Butane, Hydrogen |
| Ex-Protection | ATEX/UL/CSA 60079-0, UL/SA 60079-11, Zone 2 |
| Sensitivity | 1 g/a (High+) / 3 g/a (High) / 14 g/a (Low) |
| Response / Recovery Time | <2 Seconds |
| Measuring Range | 1 ppm to 1.0 Vol.% (CH₄, C₃H₈, C₄H₁₀, H₂) |
| Dimensions (H x Diameter) | 132 x 60 x 37mm (L x W x H) |
| Weight | 291g |
| Probe Length | 295mm |
| Operating Temperature | -10 to +50°C |
| Battery Life | 8 Hours |
| Sensor Lifetime | 2 Years Under Normal Use |
| Alarm Type | Optical, Audible, and Vibration |
| Kit Contents | Softcase, Filters, Protection Cap, 1x Gas Sensor, USB-C Cable |
