Absolutely love this thermometer. It not only gives me clear and accurate information for my fridge and freezer (especially useful to keep my food fresh when the fridge decided not to chill when driving an reached 16 degress!), but also lets me know how the max and min temp of my motorhome! So glad I found it in the web - true value for money. P.S. To use the magnet feature of the reciever, I made a little tin plate with a small lip at the bottom and fixed that to the inside wall next to the door so I keep an eye on the temps easily. The small lip at the bottom means that even over rough, dirt roads the unit does not slide off the wall.