The OLLI H₂ is an explosion-proof, compact gas detection and measurement device designed specifically for the targeted detection of hydrogen. It has been developed particularly for applications requiring robust and reliable monitoring of the gas, e.g. in gas infrastructure, in forming gas systems or in the field of hydrogen technology. The device is calibrated for hydrogen (H₂) as standard. Optionally, an additional methane (CH₄) measurement function can be integrated to allow flexible adaptation to different operational requirements. The OLLI H₂ is supplied as a pump-powered version as standard and is equipped with a high-performance Li-ion battery. This makes it ideal for controlled sampling, leak detection and measurements in hard-to-reach places. Optionally, the device can also be fitted with an integrated pressure sensor. The extremely robust 2K plastic housing makes the OLLI H₂ particularly durable for daily field use. The compact design and low weight ensure high carrying comfort even during long periods of use. Highlights: - Measurement of H₂ (standard calibration) - Pump operation as standard - Li-ion battery for long operating times - Optional CH₄ measurement - Optional pressure sensor - Compact, robust 2K housing - Suitable for use in potentially explosive atmospheres Technical data: - Operating time: > 50 hours (depending on ambient conditions, without lighting) - Dimensions: 170 × 80 × 43 mm - Weight: approx. 350 g - Temperature range: −20 °C ≤ Ta ≤ +50 °C Explosion protection: ATEX marking: II 2G Ex ib db IIC T4 Gb BVS 17 ATEX E 043 X IECEx marking: Ex ib db IIC T4 Gb IECEx BVS 21.0085X