Long range laser distance sensors covering 100 m up to 3000 m using pulse time-of-flight on an eye-safe 905 nm Class I beam. Messcan’s long range ToF sensors deliver metre-level accuracy over open ground, ports, slopes and infrastructure, in housings rated for outdoor duty. The native interface is TTL 3.3 V, with RS485/RS232 through an external converter for integration into telemetry and control systems. Applications include harbour and stockpile surveying, drone altimetry, power-line clearance and slope monitoring.