Operator`s manual

Factory Mutual Approvals
Factory Mutual has given the HT•1250 an intrinsically
safe rating for use in classes I, II, III, Division 1,
Groups C,D,E,F and G, as well as non-incendentive
use in
Class 1, Division 2, Groups A, B, C and D on models
ordered with the Factory Mutual option.
HT 1250 Hot Zone Radio