All but the most basic infrared thermometers will provide recording features like a Max/Min function, that displays the maximum or minimum temperature recorded during a given measurement.
These features work best when you sweep the thermometer's field of view across a given range of targets to see variance. They often reset each time the thermometer's measurement trigger is pressed, giving you a different Min. or Max. each time you scan. Check your particular thermometer's user guide for more details.
Other common features include...
These extra features are particularly useful in food service or industrial settings where fixed operating procedures or government regulations specify adherence to certain temperature ranges.
RayTemp® 28 High Temperature Infrared Thermometer auto-power off, display hold & backlight functions wide temperature range -50 to 1370 °C robust IP54 housing for durability dual laser for precise targeting external type K probes extra
RayTemp 8 Infrared Thermometer with integral type K thermocouple socket temperature range IR -60 to 500 °C, probe -64 to 1370 °C includes differential & average temperatures two-in-one thermometer target ratio 12:1 priced exclusive of probe
RayTemp 6 Infrared Thermometer with circular laser for precise targeting max/min, display hold & backlight functions adjustable emissivity for multi-surface temperature range -60 to 550 °C robust IP54 splashproof casing
RayTemp® 38 infrared non-contact thermometer for measuring small surface areas at greater distances auto-power off & backlight functions wide temperature range -59.9 to 999.9°C robust housing for durability high target ratio of 50:1 RayTemp® 38 is exclusive of probe