LRF3000A1 is a 905 nm laser rangefinder module rated to a source-stated maximum range of at least 3000 m, IEC 60825-1 Class 1 eye-safe. Ranging accuracy is +/-0.7 m under 100 m and +/-(0.7 + 0.003 x d) m beyond that, with a 1-10 Hz adaptive measurement frequency. It communicates over UART (TTL 3.3 V) at 115200 bps default, runs on 3.3-5 V DC, and draws under 2.1 W. The module measures 13.5 x 25.1 x 27.8 mm, weighs about 12 g, and carries an IP67 rating for -20 to +60 C operation, suited to industrial and civil distance-measurement applications.