The Toknav TSR20 is a handheld mobile LiDAR scanner built around a Livox Mid-360 sensor, weighing about 1.0 kg for single-handed use. It captures 3D point clouds via SLAM, RTK-SLAM, or PPK-SLAM modes, reaching roughly 3 cm relative and 5 cm absolute accuracy, with dual 20MP cameras for synchronized imagery and up to 4-8 hours of battery runtime. It's intended for architectural surveying, construction verification, infrastructure inspection, and indoor/GNSS-denied mapping.