Certified passive and active explosion protection TÜV 17 ATEX 171969 X: EU type-examination certificate II2G Ex ia db eb IIC T4 Gb: when using battery holder BVS 19 ATEX G 002 X: Measuring function certified for methane (CH4), propane (C3H8) PFG 19 G 004 X: Measuring function certified for oxygen (O2) |