Far-range Laser Ranging Sensor — measures 5–1,000 m (800 m version optional). 905 nm Class 1 eye-safe laser, UART (TTL 3.3 V, 115200 bps), 3.3–5 V supply, 1–3 Hz, operating temperature -20 to 50 °C. Compact 25.72 × 24.60 × 13.40 mm, 10 g. RoHS compliant.