Detailed Product Description Infrared ThermometerST840Noncontact measuring.Inside laser aimer.White backlight LCD.D:S=12:1Auto-data hold and auto-turn off (Auto turn off after 15sec. when release the button).A great many of emissivity symbol.Use abroad: can used for food, safety-inspect,fire inspect, power vehicle and diesel engine, plastic factory etc.Can select /.TECHNOLOGY ...