My thermometer started failing while cooking the Thanksgiving turkey. It was unable to receive the remote even though about 25 feet separated them. I replaced the batteries in both the remote and monitor and everything seemed to work. The next day the monitor just flashed some digits and would not synchronize with the remote. I replaced batteries, did resets etc. to no avail. I had only used the device about a dozen times previously. Suggest the Redi-Check device from Maverick, I've used one of those for three years without any problems.