What is a min-max thermometer?
A min-max thermometer tracks the lowest and highest temperatures reached over a period, using small sliding index markers that stay in place after the mercury or alcohol column moves past them. A reset button returns the markers to the current reading, ready for a fresh 24-hour cycle.
SmartLabs stocks wall-mountable min-max thermometers, ideal for monitoring greenhouses, storage rooms, and cold storage where temperature swings matter.