For constant temperature readings, whilst the display remains outside of the fridge, this is done with an internal probe.

This fridge thermometer features a large LCD display, a max/min memory function to record the highest and lowest temperatures and an audible alarm. The thermometer incorporates two temperature sensors, a remote water resistant probe with a one metre PVC lead for the appliance temperature, and an internal sensor for the room temperature. The remote probe can be mounted onto the fridge internal wall using the suction pad or mounting bracket supplied.

Features
 

• Measurement range -49.9 to 69.9°C
• Large LCD display
• Housed in a robust ABS case and incorporates a foot-stand for shelf mounting
• Min/Max memory function to record highest and lowest temperatures
• Programmable audible alarm
• Incorporates two temperature sensors; a remote water resistant probe for appliance temperature and internal sensor for room temperature