8Hz Laser Sensor for Distance Measurement 40M

Short Description:

With the continuous progress of science and technology, the degree of industrial automation has become higher and higher. Seakeda’s M91 series of laser ranging sensors can measure moving objects up to 8HZ/S, sample changing distance or displacement data in time, and transmit the data to the top computer in real time. Ranging can be up to 40m, accuracy is maintained at 1mm, the working temperature can be up to 50 degrees.

 Measuring range: 0.03~40m

               Accuracy: +/-1mm

            Frequency: 8Hz

                   Output: RS485

                  Voltage: 5~32V

Seakeda laser range sensor is a powerful, accurate, non-contact industrial range measuring device that can be integrated into a wide range of control and monitoring systems for a variety of industrial applications. Contact us for product catalogues and prices.

Product Detail

Product Tags

Product Introduction

M91 laser ranging sensor 8Hz frequency, can quickly and accurately measure the distance to the target, the measurement results can be transmitted to the equipment with RS485 protocol interface through the laser ranging sensor RS485 interface, for detection, control and other applications. At the same time, the control of laser ranging sensor can also be accomplished by computer, PLC or other connected equipment.

Laser Depth Sensor
Laser Distance Meter Sensor


1. Strong anti-stray light interference ability: can be used indoors, can also be used outdoors.

2. High precision: accuracy up to ±1mm.

3. Fast measurement speed: the measurement frequency is 8Hz per second, which can be used for moving target measurement.

4. Easy to operate: it can control the operation by computer input instruction, also can work on the power, can work intermittently, but also can work continuously for a long time.

5. Digital output: output through an RS485 universal serial port.

Laser Distance Module Arduino


Model M91-8Hz Frequency 8Hz
Measuring Range 0.03~40m Size 69*40*16mm
Measuring Accuracy ±1mm Weight 40g
Laser Grade Class 2 Communication Mode Serial Communication, UART
Laser Type 620~690nm,<1mW Interface RS485(TTL/USB/RS232/ Bluetooth can be customized)
Working Voltage 5~32V Working Temperature 0~40(Wide temperature -10 ~ 50 can be customized)
Measuring Time 0.4~4s Storage Temperature -25-~60


1. Under bad measure condition, like environment with strong light or the diffuse reflectance of measuring point over-high or low, the accuracy would have bigger amount of error: ±1 mm± 50PPM.

2. Under strong light or bad diffuse reflectance of target, please use a reflection board

3. Operating temperature -10 ~50 can be customized

4. 60m can be customized


Laser ranging sensor in a wide range of industrial applications, laser ranging sensor completely adopts industrial standard design, production and detection, laser has the advantages of strong directivity, high brightness, laser ranging sensor principle is to determine the target distance by measuring the time required by the laser to the target.

Laser Distance Meter Module

How To Use



Basic Port Configuration:

Baud Rate: 19200bps

Start Bit: 1

Data Bits: 8

Stop Bit: 1

Parity Bit: None

Flow Control: None


If you need to understand and use the command please contact us.

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