ABB TTF300-002 - TTF300 Field Mounted Temperature Transmitter with programmable LCD display, Hart Protocol, FM Intrinsic Safety (IS) Class 1, Div 1 + 2 Groups A, B, C, D, Class 1, Zone 0, Aex ia II T6, Single-Compartment Alum Housing with Thread 2 X 1/2"" NPT Cable Entry, Standard Configuration, TTF300.L1.C.2.H.BS... Show more This is FM Intrinsically safe only. You must use a barrier if you want to use it in a FM Div. 1 Explosion Proof area. Show less