Product overview
The Benewake SR18 is a compact 360° 3D LiDAR for navigation, obstacle avoidance and mapping on mobile platforms. Optimized for robotic lawn mowers, it also supports commercial cleaning robots, last-mile delivery robots and lightweight UAVs. Its 18 channels provide a 360° horizontal × 48° vertical field of view, with detection reaching 30 m at 10% reflectivity and a minimum range of ≤0.15 m. Channels angled toward the ground help detect low obstacles and terrain changes, with vertical coverage from −8° to +40°.
Within its integrated transmitter-receiver design, each emitting channel has its own detector to help limit interference caused by strong reflections. The SR18 provides a 54 kHz point rate with single returns, configurable 5 / 10 Hz frame rates and 0.6° horizontal resolution at 5 Hz. Return selection includes strongest, farthest and nearest modes. The RS485 interface transfers data at 3,125,000 bit/s, and a built-in IMU supplies 200 Hz output. The laser operates at 940 nm and is Class 1 eye-safe.
The 190 g enclosure accommodates top-mounted or embedded installation. Average power consumption is ≤4 W across an operating voltage range of 9–32 V. The SR18 has IP66 ingress protection and operates at temperatures from −20°C to +60°C. Remote firmware updates support ongoing feature and performance improvements after installation, helping reduce service visits and hardware replacements.
