The HVAC troubleshooting kit. Combining the most rugged Fluke 62 MAX+ infrared thermometer with the easy-to-use 417D laser rangefinder provides everything you need to configure layouts and quickly solve electrical and HVAC problems. Use the infrared thermometer to test for overheating in electrical appliances and HVAC components, and use the laser rangefinder to determine distances, areas and volumes for room configuration. The Fluke 417D is suitable for continuous measurement. The Fluke 417D and the 62 MAX+ have protection class IP54 and are built to be water and dust resistant.