These large digital thermometers simultaneously show the current, minimum, and maximum temperatures and update continuously

The probe is housed in an unbreakable plastic bottle filled with a buffering media that maintains the thermometer reading when the instrument door is opened. The thermometer and the probe bottle have dual magnets to attach to the instrument. Thermometers also feature a flip-open stand, wall mounting key hole, and an AAA alkaline battery.

An audible alarm sounds when the temperature rises above or below a set temperature. The minimum/maximum feature monitors critical temperature for any period of time