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Laser Ranging Sensor RS485 (4-400cm)
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This laser range sensor can be used to detect objects in 4~400cm with ±2cm accuracy. With 3 measurement modes supported, it is well applicable to various det...
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This laser range sensor can be used to detect objects in 4~400cm with ±2cm accuracy. With 3 measurement modes supported, it is well applicable to various detection scenarios like security gate detection, access control systems, security alarm devices, smart trash cans, smart cars, or robots for obstacle avoidance.
The sensor metal black shell adopts a threaded barrel design and its probe comes with an optical cover. The integrated design makes the product able to effectively filter optical interference, waterproof and shockproof. The sensor uses an invisible laser and there is a voltage regulator circuit inside the module. It operates at 5V~36V and employs an industrial 485 chip, which supports Modbus-RTU protocol and works well with industrial 485 devices. The sensor has an alarm output line that will be triggered to output Low steadily when the measurement distance is smaller than the user-set threshold.
Note: The data will be unstable when measuring black objects.
FEATURES
FEATURES
Laser ranging
Wide voltage of 5-36V
RS485 output
Made with metal, waterproof and shockproof
SPECIFICATION
Power Supply Voltage: 6-36 V
Measuring Distance: 4-400 cm
Measurement Accuracy: ±2 cm
Emitting Angle: 39.6°
Receiving Angle: 36.5°
Working Current: ＜38mA
Communication Interface: RS485
Communication Protocol: Modbus-RTU
Waterproof Rating: IP67
Baud Rate: 2400-921600 optional 115200 (default)
Frequency: 20Hz (default)
Working Temperature: -20~70°C
Size: 21.5×21×8 mm / 0.85×0.83×0.31 inch
DOCUMENTS
DOCUMENTS
Jargon buster
Plain-language definitions for the technical terms used above.
- baud
- Baud is the signalling rate of a serial connection, often used as the speed setting for UART communication. Matching the baud rate matters because both connected devices must use the same setting for readable data.
- IP67
- An ingress protection rating meaning the enclosure is dust-tight and can survive temporary immersion in water under specified test conditions. This matters when choosing a sensor for outdoor, wet, or wash-down environments.
- Modbus
- Modbus is an industrial communication protocol used by many meters, sensors, PLCs, and automation devices. Modbus support matters because it can make the controller easier to integrate with existing industrial equipment.
- ModBus-RTU
- ModBus-RTU is a common industrial protocol for sending sensor readings and control commands over serial links such as RS485. Knowing the sensor uses ModBus-RTU helps you choose software libraries, data loggers, or controllers that can request and interpret its readings.
- RS485
- RS485 is a robust wired serial communication standard often used in factories, farms, and buildings where cables may be long or electrically noisy. It matters because it lets this controller connect to industrial sensors, meters, and control equipment over longer distances than typical hobby serial wiring.
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