Eti maxmin fridge freezer thermometers eti 810 210 this fridge thermometer from eti features a large lcd display a maxmin memory function to record the highest and lowest temperatures and an audible alarmthe thermometer incorporates two temperature sensors a remote water resistant probe with a 1m pvc lead for the appliance temperature and an internal sensor for the room temperaturethe remote probe can be mounted onto the internal wall of the fridge using the suction pad or mounting bra