Max/Min Record: Switch mode to Max or Min status,then long press trigger to find the Max/Min value during the continuous measurementSelf calibration function: You can calibrate this infrared thermometer by yourself freely between -5.0 and +5.0(-41 to 41) to make the reading more accurate.For example: if the temperature is 26.3 and the temperature value measured is 25, then and 1.3 should be increased as a calibration value,and after calibration press the mode key to return to the measuring mode.Backlit & C/F switchable: automatic data hold, backlit LCD, low battery indicator, C/F switchable, auto power off function,2pcs AAA battery included.Free meat thermometer: Can measure the internal temperature range: -50 C to +300 C / -58F to +572F, fast reading, large-screen LCD display, 304 stainless steel probe, high precision ( 1 C / F), it can be used for home cooling or for cooking, measuring heating food or daily use. 15 minutes turn off automatically.CAUTION: The TP101 BBQ thermometer is designed for temporary, hand held use. Do NOT leave in an oven. Do not leave inserted in extremely hot foods or liquids (anything over 572F) for more than 1 minute.; This FN400 cooking surface thermometer is used for measuring the temperature of the object's surface, which is applicable for various hot, hazardous or hard to reach objects without contact safely and quickly ( NOTE: The measured temperature for humans or animals will not be correct.).