@LaxTechnology I have several WS-8115U-S-INT clocks, and all the external sensors (including one that was never used) have failed. I've already tried fresh batteries all round. Amazon reviews suggests it is a common problem; have you made a revised sensor that is more reliable?
Hi Alan, we apologize for the sensor troubles. It's extremely rare that each of them would quit at the same time. If you could please contact our support team here: http://bit.ly/contact_techsupport … we'd be more than happy to help figure out a solution.