Bluetooth APP ConnectionThe Infrared thermometer can be connected to the mobile phone by wireless transmission, and displayed on the phone by APP, you can remotely monitor the measurement condition, the distance control is 1015m.Widely Use: This handy laser temperature gun allows you to measure high temperatures, such as HVAC, industrial equipment aging maintenance, industrial Reflow furnaces, and Pizza ovens. Flammable places like Metal Casting, Smelting, Alloys, Incinerators, Kilns, Ceramic, and so on.Thoughtful Design: The Infrared thermometer gun features MAX/ MIN/ AVG/Alarm of High or Low Temperature/Data Hold Mode, and, a backlit LCD allows you to easily read temperatures in the dim.Wider Temperature Range Color LCD Infrared Thermometer measures temperature from -58F - 2732F (-50C - 1500C), with +/- 2% accuracy at average. Safely measure surface temperatures of hot, hazardous, or hard-to-reach objects without contact.Donot for Humans: This temp gun thermometer is unsuitable for human/internal body temperature use.More accurate: laser thermometer gun has a distance-to-spot ratio of 30:1 & emissivity range of 0.1 to 1.0, enabling you to measure different targets from a comfortable distance accurately.