Motorola H01UCC6DU3AN Operating Instructions Manual page 34

* These accessories are approved as being intrinsically safe by Fac-
tory Mutual Research Corporation (FMRC). Refer to the radio label
for intrinsic safety ratings and required batteries. Only the acces-
sories and antennas noted by an asterisk (*) may be used on ap-
proved radios.
!
WARNING
Substitution of components may impair
the intrinsic safety of the radio.
Optional Accessories 33