UL intrinsically safe to Class I, Division 1, Groups A B, C and D. cUL intrinsically safe to Class I Div. 1 Groups A, B, C, and D with certification to CAN/C22.2 No 152 combustible performance. European Testing Laboratory as ATEX II 2 G EEx ia d IIC T4 +50C (T code and max ambient are battery-type dependent). Australian (IEC) Testing Laboratory as Ex ia s IIC T4 +50C (T code and max ambient are battery type dependant); mine certification Ex ia s I/IIC T4.