LDJ laser distance sensor, is a kind of sensor using laser technology for distance measurement, support secondary development and data communication transmission, support USB, TTL, RS232, RS485, Bluetooth and other communication interfaces. It can be customized with two color lasers, green light and red light, and the frequency has 3/10/20Hz to choose from, which is suitable for different working scenarios. There are single measurement and continuous measurement modes, support 24h continuous uninterrupted work, commonly used in industrial intelligence, intelligent warehousing, rail transportation, engineering measurement system.