Died right after 90 day warranty

It worked great until 10 days after the 90 day warranty date. Now the unit flashed the green light, but the pager does not sound. I changed batteries with brand new premium ones and it is still dead. So out $31 and now afraid every minute that Mom will try to get up and fall every until I come up with a better solution. It should work for more than 110 days!

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