DDK Series Long-Range Laser Distance Sensor
(Phase-Shift Measurement)
High-precision, non-contact distance measurement from 0.1m to 50m with 1mm resolution. Features multi-output options (RS485, Analog, NPN/PNP), IP67 protection, and easy on-device setup—no PC required.
1. Key Parameters
Measurement Range
0.1 – 50 m (model dependent)
Resolution
1 mm
Accuracy
±(2 mm + 0.01% of distance)
Laser Class
IEC 60825 Class II, <1 mW
Output Types
NPN/PNP + Analog + RS485
Protection
IP67, aluminum housing
2. Detailed Specifications
| Measurement Range | 0.1–1m / 2m / 5m / 10m / 20m / 50m |
| Resolution | 1 mm |
| Measurement Error | ±(2mm + d×0.01%) ★ |
| Laser Type | Class II Red Semiconductor Laser, 655±10nm, <1mW |
| Power Supply | DC 12–24V ±10% (Ripple ≤10%) |
| Current Consumption | ≤50mA @24V |
| Digital Output | NPN / PNP open collector, max 50mA, ≤30V |
| Analog Output | 0–5V (alarm: 5.2V) or 4–20mA (alarm: 0mA) |
| RS485 | Modbus RTU, 9600–256000 bps, address 1-255 |
| Response Time | 50–200 ms |
| Protection | Reverse polarity, short-circuit (auto-recovery) |
| Ingress Protection | IP67 |
| Operating Temperature | −10°C to +45°C (no condensation) |
| Housing Material | Aluminum |
| Cable | 2m, 8-core shielded cable |
| Weight | Approx. 150g |
★ Error may increase in strong sunlight, low-reflectivity targets, or extreme temperature fluctuations. Use a reflector for optimal performance.
3. Wiring Diagrams
NPN + Analog (4-20mA) + RS485 Wiring
PNP + Analog (0-5V) + RS485 Wiring
4. Mechanical Dimensions
Dimensions: Compact aluminum housing with M12-style mounting
5. More Resources & Applications
Typical Use Cases
AGV navigation, level monitoring, robotics positioning
Model Selection
NPN/PNP + Analog + RS485 variants for all ranges
Field Installation
Robust performance in dusty, wet environments
