This micro laser distance sensor utilizes phase-based ranging technology and supports a variety of measurement ranges, including 10m, 20m, 60m, and up to 100m. It features a Class II laser, a wavelength of 610–690 nm, and an output power of <1 mW, ensuring safe and stable operation. It is suitable for robot navigation, warehouse positioning, AGV development, and smart device applications, and is particularly well-suited for automated scenarios requiring high-precision and long-range measurement.
Feature

- With 1 mm resolution and measurement frequencies of 3 Hz or 20 Hz, it delivers stable and fast distance measurement.
- It supports multiple interfaces, including RS485, RS232, and TTL, facilitating system integration and communication expansion.
- The SUCH micro laser distance sensor offers a wide measurement range of 0.03–100 m, with multiple specifications available from 10m to 100m.
- Featuring a Class II laser and low-power design, it offers strong anti-interference capabilities and is suitable for measurements in complex environments.
Dimension (unit: mm)

Working Principle

The measured distance can be expressed as: 2L = Δφ × c × T / 2π
In this formula, L represents the measured distance, c is the speed of light in air, T is the period of the modulated signal, and Δφ is the phase difference between the transmitted and received modulated light.
Phase-based laser sensor offers advantages such as high measurement accuracy, a wide measurement range, and strong resistance to interference, making it widely used in fields such as industry, surveying, and remote sensing.
PIN Definition

| Pin Number |
Name |
Function |
Description |
| 1 |
GND |
Ground |
Module power supply ground |
| 2 |
B- |
RS-485 Input/Output |
RS-485 device differential signal (DATA-) inverted input/output |
| 3 |
A+ |
RS-485 Input/Output |
RS-485 device differential signal (DATA+) non-inverted input/output |
| 4 |
VCC |
Power Input |
Typical module input power requirements: >300mA @ 5V DC |