Since 1910， General Tools has grown to become a recognized industry leader for specialty hand tools and instruments. The IRT850K Ultra Wide-Range Infrared Thermometer features a 50:1 distance-to-spot (D:S) ratio， a \"K\" port for using an optional probe to measure surface temperature， and adjustable emissivity， ideal for measuring high temperatures safely from a distance. Industrial applications include operation and maintenance of furnaces， hot water heaters or heat exchangers.

Extremely wide IRT measurement range of -76-degree to 2732-degreeF

IRT measurement accuracy of ±1.8-degreeF (typical)

K port measurement range/accuracy: -83-degree to 2552-degreeF / ±(2% of reading +3.6-degreeF)

Adjustable emissivity

Dual targeting lasers

Port for optional "K" type thermocouple for making contact surface temperature measurements

Releasing trigger holds measurement

Measurement lock mode eliminates need to squeeze trigger to take readings

Stores/recalls 24 data sets (measured temperature plus emissivity setting)

Minimum/maximum/average/different displays

Adjustable high and low temperature alarm set points

2 in. diagonal backlit dual-readout LCD with 0.5 in. digits on main readout

Built-in white LED flashlight

Auto power off

Degrees C/F， lasers and flashlight on/off and backlight on/off buttons

Battery charge indicator

Tripod mount

Power source: two AAA batteries (not included)