This is the NIST-certified version of REED's R2340 professional infrared thermometer, sharing the same 55:1 distance-to-spot ratio, -50C/1850C range, integrated Type K thermocouple input, and 999-point internal data logging as the standard model. It also reports ambient temperature, humidity, dew point, and wet-bulb readings, and runs on a rechargeable USB-C Li-ion battery rated for about 20 hours of use. The R2340-NIST additionally ships with a NIST-traceable calibration certificate, making it suitable for quality-controlled industrial environments where documented measurement accuracy is required.