LLDS12
Dragino LLDS12 is a LoRaWAN® LiDAR ToF Distance Detection Sensor for IoT solution. It measures the distance between the probe and a flat object. LLDS12 uses LiDAR (Time of Flight) ToF technology for distance measurement, It is capable to measure the distance to an object as close as 10 cm (+/- 5cm up to 6m) and as far as 12 meters.