The following accessories have been approved for various types of IS applications. Each accessory lists the classifications under which it can be used.
OTTO V2-S2ER12111-S Storm Speaker Microphone for Harris Radios - IS/ATEX Approved
Immersion rated with earphone jack seal closed, fully sealed per IP68 standard: tested to withstand submersion in 1 meter water for 31 minutes
Larger push-to-talk (PTT) with positive tactile feedback
Sama..
$208.28
Motorola AAK66X501 FNB-V134LiiS IS Battery
Intrinsically Safe Battery 2300 mAh Li-Ion. Use only with VAC-UNI-B charger. For the following Vertex radios:
ISEVX-531, ISEVX-534, ISEVX-539
ISVX-451, ISVX-454, ISVX-459
..
$98.95
Motorola A13960507 MH-45B4B
Noise canceling speaker. IS/ATEX rating for this item.Use with VX-231, VX-350, VX-410, VX-420, and VX-450 series radios...
$78.95
Motorola AAE46X507 MH-66A4B
Submersible Speaker microphone, IP-57 rated. IS/ATEX rating for this item.
Use with the following radios:
VX-450 series; VX-451, VX-454, VX-459, ISVX-451, ISVX-454, ISVX-459
EVX-530 series radios; EVX-531, EVX-534, EVX-539, ISEVX-531, ISEVX-534, ISEVX-53..
$87.95