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If you have either the DSC WT4911B or the DSC WT4911R Wireless Outdoor Siren with Strobe and the battery is getting low and you've been searching for a replacement then you've come to the right place.
This battery is the lithium battery that is currently contained in your DSC wireless outdoor siren and after awhile it will need replaced.
NOTE: This item cannot be shipped via air and as such cannot be shipped outside of the lower 48 USA.
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