EXTREMELY HIGH TEMP RANGE - BT-1800 Pro Laser Thermometer can measures high temperature range from -58°F -3272°F (-50 - 1800℃) with high accuracy ± 2.5% of reading at average. PRO DIGITAL PYROMETER GAUGE - Built with non-slip rubber handle, super handy for non-contact high temperature measuring for HVAC industrial, mechanical, smelting. Such as: metal melting furnace, forge bricks ceramic pottery, casting, blacksmith and welding FURTHER DISTANCE + 2 LASERS - With distance to spot ratio 50:1, dual laser points for instant targeting, which means you can stand far from heat to measure high temperature. Instantly capture hot spot detect the internal temp of forge kiln furnace within 0.25 second only. HANDHLED IR THERMOMETER - Features with MAX/MIN/Average/Difference mode and high/low temp warning. Flashing alarm once the current temp exceeds the set-point. Color LCD screen backlight display + flashlight can better distinguish the data at a glance and get the jobs done in dark. Repeatability: 1% of reading or 1℃, with adjustable emissivity 0.1 to 1.0g LASER THERMOMETER - Auto Power OFF, Low power indicator to extend the battery life. BT-1800 Professional digital infrared temp meter is specially designed for inanimate objects, temperature measurement for humans or animals could cause lower readings.optical power Less than 0.5mW. Wavelength 630-670 um. Color:As Shown Material:plastic Package Contents: 1 * BT-1800C Pyrometer 1 * Storage bag Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.