Chino laxons is the manufacturer and exporter of thermometers. They present ir-f series fiber type radiation thermometers for medium/high. The ir-f series is radiation thermometers using single-core quartz fibers. These thermometers cover the temperature range from 80 to 3000. The thermometers for medium/high temperature use ingaas and si as a detector and have measuring ranges including 400 to 1100.