I've got a couple of BBQ temp probe things from Bunnings - cheap, $30 things that you stick the probe in the meat, close the lid and use the hand held device to read the temp remotely. The alarm (you can set to do a buzzer when it reaches a certain temp) pisses me off because it's so quiet. Or so I thought. "Shut that bloody thing off" my son yelled at me. Apparently the buzzer in this is at that pitch that people over 30 can't hear - didn't believe I was getting old til I heard about the "mosquito" ring tones kids were using in class so their teachers wouldn't hear. Was the first slap in the face for me. This one is just another. Major design flaw, but can't really blame the young punks who made and tested it.