Manual
Routine Maintenance 
Carefully inspect the beacon case for any visible cracks. 
Cracks may admit moisture, which could falsely activate the 
beacon or otherwise cause a malfunction. Any cracks 
observed should be immediately referred to ACR for 
evaluation by calling +1 (954)-862-2110. ACR Technical 
Support can also be reached by sending an email to: 
service@acrelectronics.com 
After checking the beacon case for cracks, it may be wiped 
down with a clean, damp cloth. Do not use any type of 
cleaner on your beacon. 
Battery Replacement 
Replace the battery no later than 6 years from beacon date 
of manufacture, 5 years from in service date, or after 
emergency use. At each inspection, check the time 
remaining until replacement is required. The battery should 
be replaced if the beacon has been activated for any use 
other than the Self-test. Always refer battery replacements 
and other beacon service to a factory authorized Battery 
Replacement Center. Battery replacement includes servicing 
the beacon by replacing all o-rings, testing the water seal 
and the electrical properties. 
NOTE: There are no user serviceable items inside the 
beacon. DO NOT OPEN THE BEACON. Opening the beacon 
will void the warranty. 
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9. Beacon Maintenance 
For the nearest location of a Battery Replacement Center, 
visit our website at www.acrelectronics.com/where-to-
buy/find-a-battery-service-provider/ 
This beacon contains 1 lithium metal battery pack that is 
less than 0.8 grams. They are not classified as Hazmat for 
transportation. Prior to shipping beacon for service, alert 
your carrier about the batteries contained in this equipment 
to make sure they properly label your package. Call ACR’s 
Technical Service department at +1 (954)-862-2110 for 
proper shipping instructions or visit the ACR website for an 
MSDS. 
Download MSDS Sheet 










