This is the same REED R2165 thermal camera (160x120 resolution, 2.8 in color display, -10 to 400C range) but shipped with a NIST-traceable calibration certificate. The added certificate documents the unit's measurement accuracy against a national standard at the time of manufacture, which is typically required for quality-audited or regulated inspection work. Everything else about the imager, its sensor, controls, and battery, matches the standard R2165.