Standard Mode
Set a reference distance, trigger the switch when an object in this range is detected, and do not respond when an object outside the distance is detected.
Real-Time Distance Detection
Compared with traditional photoelectric sensors, SR series laser ranging sensors have the ability to measure and display the surface distance from the detected object in real time. The sensor is also equipped with a variety of interfaces. The control system can monitor and adjust the sensor in real time to improve the overall efficiency of the system.
Unaffected by Color and Material
The SR series is the TOF ranging principle, which is not easy to be affected by the color and material of objects, and simplifies the workpiece replacement process. The installation efficiency is better than that of traditional reflective and regressive photoelectricity, which shortens the production preparation time. In addition, the product can be set up to avoid mistrigger by operators and improve the safety and reliability of the production line.
Wide Sensing Distance
In the past, different sensors were needed for different detection distance requirements. However, the SR series has a wide induction distance of 0.05-10m, which can meet the needs of different sensing distances without switching the sensor.
Quick Response Time
The SR series has an extremely fast response speed, with a minimum response time of only 0.5 milliseconds, and is at the forefront of similar products. Suitable for application scenarios with strict requirements for rapid decision-making, such as automatic navigation, obstacle avoidance system and robot control.
Compact Body Design with Small Space and Unlimited Space
So far, the long-distance reflection sensor is large in size and limited in installation location. The SR series has been ultra-miniaturized because it can be installed in various places, thus helping to achieve greater design freedom.
TOF laser sensor
Shenwu SR-TX series laser sensor, combined with TOF technology (Timeof Flight) and custom C, has more reliable and easy-to-use detection performance. As an innovative choice for universal laser sensors, it is also equipped with a variety of functions, which can detect various objects, with a high degree of installation flexibility, and is suitable for various application needs.
TOF laser sensor
The TOF sensor can achieve a wide range of detection from 0.05 to 10m, and can stably measure objects of different colors and different surface states.
Measurement gap
Using a TOF laser ranging sensor for detection can effectively reduce interference from surrounding objects. Compared to "triangulation" or "ultrasonic" ranging sensors, the TOF sensor can effectively detect through gaps or objects with holes.

TOF (Time of Flight) detection principle
The sensor works based on the TOF principle and determines the distance by measuring the time when the laser pulse is emitted and reflected back. Its detection effect is not affected by the surface condition of the workpiece, and there is almost no limit on the surface color or state of the object, enabling it to effectively detect many types of objects.

The functional experience port of the screen display
The SR series laser ranging sensor has a screen display function, which can display ranging data and status information in real time, bringing users instant feedback and a clear visual experience. In addition, the sensor also has a number of built-in functional settings. Users can flexibly configure various parameters according to specific application requirements, so as to achieve highly personalized operation and monitoring.

Three Major Detection Functions
Kind
Red light
| Detection Method | Shape | Connection Method | Detection Distance | Output Type | Model | Light Source | |||||||
| Reflective TOF | Wire-out type (2m) |
0.05m-2m | NPN output | SR-TX200N | Class2 | ||||||||
| Relay type (0.15m) | SR-TX200N-C12 | ||||||||||||
| Wire-out type (2m) | PNP output | SR-TX200P | Class2 | ||||||||||
| Relay type (0.15m) | SR-TX200P-C12 |
Kind
Red light
Infrared Light
| Detection Method | Shape | Connection Method | Detection Distance | Output Type | Model | Light Source |
| Reflective TOF | ![]() | Lead-wire Type (2m) |
0.05m-5m | NPN/PNP Output | SR-TX500 | Class2 |
| Relay Type (0.15m) | SR-TX500-C12 | |||||
| Lead-wire Type (2m) | Analog Current Output | SR-TX500M | ||||
| Relay Type (0.15m) | SR-TX500M-C12 | |||||
| Lead-wire Type (2m) | Analog Voltage Output | SR-TX500MV | ||||
| Relay Type (0.15m) | SR-TX500MV-C12 | |||||
| Lead-wire Type (2m) | Serial Port Output | SR-TX500-485 | ||||
| Relay Type (0.15m) | SR-TX500-485-C12 | |||||
| Reflective TOF | ![]() | Lead-wire Type (2m) |
0.1m-10m | NPN/PNP Output | SR-TX1000 | Class1 |
| Relay Type (0.15m) | SR-TX1000-C12 | |||||
| Lead-wire Type (2m) | Analog Current Output | SR-TX1000M | ||||
| Relay Type (0.15m) | SR-TX1000M-C12 | |||||
| Lead-wire Type (2m) | Analog Voltage Output | SR-TX1000MV | ||||
| Relay Type (0.15m) | SR-TX1000MV-C12 | |||||
| Lead-wire Type (2m) | Serial Port Output | SR-TX1000-485 | ||||
| Relay Type (0.15m) | SR-TX1000-485-C12 |
* If you have any other laser ranging needs, please contact our business staff.
Rated Value
| Detection Method | Reflective TOF | ||||||||||
| Product Model | SR-TX200N | SR-TX200P | SR-TX500 | SR-TX500M | SR-TX500MV | SR-TX500-485 | SR-TX1000 | SR-TX1000M | SR-TX1000MV | SR-TX1000-485 | |
| Output Type | NPN | PNP | NPN/PNP | 4-20mA | 0-10V | RS485 | NPN/PNP | 4-20mA | 0-10V | RS485 | |
| Detection Distance | 50-2000mm | 50-5000mm | 100-10000mm | ||||||||
| Screen Display | No screen display | LED screen display | LED screen display | ||||||||
| Light Source | Projection Element | 650nm | 650nm | 905nm (indicative light source 635nm) | |||||||
| Laser Grade | Class2 | Class2 | Class1 | ||||||||
| Beam Type | Point laser | Point laser | Infrared light (with laser indication) | ||||||||
| Response Frequency | When the response time is set to 1ms, the response frequency is >200Hz | When the response time is set to 0.5ms, the response frequency is >1kHz. | When the response time is set to 0.5ms, the response frequency is >200Hz. | ||||||||
| Response Time | 0.5ms/1.5 ms/10 ms/25 ms/100 ms/1000 ms Switching method: key setting | ||||||||||
| Resolution | 1mm | ||||||||||
| Repeat Accuracy | <5mm | <3mm | <7mm | ||||||||
| Operating Voltage | DC9-30V | DC9-30V | DC18-30V | DC9-30V | DC12-30V | DC18-30V | DC12-30V | ||||
| Current Consumption | I<80mA | I<150mA | I<150mA | ||||||||
| Control Output | Output form | NPN output type: NPN collector open circuit output, maximum load current 100mA, maximum load voltage 30VDC Residual voltage: within 1.5V | |||||||||
| PNP output type: PNP collector open circuit output, maximum load current 100mA, maximum load voltage 30VDC residual voltage: within 1.5V | |||||||||||
| —— | RS-485 communication, Modbus RTU protocol | ||||||||||
| —— | Analog current output: 4-20mA | ||||||||||
| —— | Analog voltage output: 0-10V | ||||||||||
| Action Mode | NO/NC can be switched as follows: key setting | ||||||||||
| Timer | —— | Time delay on/time delay off/single delay | |||||||||
| Indicator Lights | Power indicator: green; action indicator: orange; error indicator: red | ||||||||||
| Power Protection | Power supply reverse protection, output short circuit protection, output reverse protection, output overload protection | ||||||||||
| EMC Protection | Electrostatic protection, EFT protection, surge protection | ||||||||||
| Protection Rating (IP Rating) | IP64 | ||||||||||
| Environmental Performance | Environmental Illumination | Incandescent lamp: Illuminance on the light-receiving surface is below 3,000 Lux | Incandescent lamp: Illuminance on the light-receiving surface is below 3,000 Lux | Incandescent lamp: Illuminance on the light-receiving surface is below 10,000 Lux | |||||||
| Ambient Temperature | -20 to +55°C (No Icing) | ||||||||||
| Ambient Humidity | 35 to 85% RH (No Condensation) | ||||||||||
| Insulation Resistance | Above 20MΩ (DC500V megohmmeter) | ||||||||||
| Voltage Resistance | AC1000V 50/60Hz 1min | ||||||||||
| Vibration Resistance | 10~55Hz, 1.5mm, double amplitude in X, Y, Z directions, 2 hours each | ||||||||||
| Impact Resistance | 1000 m/s2 X, Y, Z direction 6 times each | ||||||||||
| Wiring Method | Lead-wire Type (standard line length 2m) | ||||||||||
| Material | Outer Casing | PC | Aluminum alloy | ||||||||
| Lens | PMMA | ||||||||||
| Cables | 0.2mm 4-core PVC cable | ||||||||||
| Weight | 44g | 75g | 121g | ||||||||
*1. The parameters of the Relay-Type sensor are the same as those of the Cable Lead-out Type. Refer to the corresponding model ratings.
*2. For analog voltage, analog current, and RS485 output models, be sure to connect the corresponding lines to avoid product damage caused by incorrect wiring.






Cable Specifications (for relay type M12 connector cable type)
| Specifications | Shape | Model | Interface | Line Length | Terminal form | Wire Diameter |
| Standard | ![]() | SR-TX200-C12-2 | M12 4-pin | 2m | 3 Line | 4.0mm |
![]() | SR-TX500-C12-2 | M12 4-pin | 4 Line | 3.8mm | ||
![]() | SR-TX1000-C12-2 | M12 5-pin | 5 Line | 4.6mm |
Circuit Diagram


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Key Words:
TOF Laser Ranging Sensor SR-TX series
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