The Mini Pocket Infrared Thermometer is a new design. Checking all types of A/C and Heating Systems. Monitor performance of appliances such as refrigerator, dishwasher, freezer and ovens. Ensuring proper cooking, grilling and storage temperatures.Features: Laser Pointer 6:1 Distance to Spot Measure up to 270C/518F Data Hold and Max Hold (IR-88H) Lock for continuous use (88H) Programmable alarm set-point (88H)