If you're having issues with your Time Timer, we'll likely want to know the batch number listed on the back of your specific timer. Refer to the images below to see where the batch number is located on various Time Timer products.
Original Time Timer 3"
Original Time Timer 8"
Original Time Timer 12"
Time Timer MOD
Time Timer PLUS 20 MIN, 60 MIN and 120 MIN
Please note that the batch number for the Time Timer PLUS may be located on the inside or outside of the battery door. Be sure to check both locations to identify your batch number.