20m Rangefinder Laser Detection Module RS485

20m Rangefinder Laser Detection Module RS485 4B2A-20m Laser Detection Module is JRT New Laser Distance Module, with RS485 interface. The Rangefinder Laser Sensor is already used in various applications, such as security systems, industrial automation, milk level detection and port crane altimetry. If you are planning to create an indoor measuring system and searching for a laser sensor, this measuring rangefinder laser is good for your project,as its +-1mm high accuracy and 20m short-range. Can you tell us where you will receive the samples? So we can help to quote for you. Technical Parameters: Accuracy: ± 1mm (+-0.04inch) Measuring Unit: millimeter  Measuring Range (without Reflection): 0.03-20m  Measuring Time: 0.4~4 seconds  Laser Class: Class II, red laser  Measuring frequency: Up to 3 Hz Laser Type: 620~690nm, <1mW  Size: 41*17*7mm Weight: About 4g  Electrical Level: TTL/CMOS Voltage: DC 2.5~3V  Operating Temperature: 0-40 ℃ (…