N1 RS485 Laser Distance Sensor – TTL Interface

The N1 Series TTL Laser Distance Sensor is a compact, single-point laser ranging sensor based on phase-shift measurement technology.
It provides millimeter-level accuracy, long measuring range up to 250 m, and stable performance for industrial and automation applications. Powered by DC 5 V and featuring a TTL UART interface, the N1 Series is ideal for precise distance measurement, target positioning, and control tasks in medium- and short-range scenarios.

 

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  • Descriptions
  • Dimensions
  • Specifications
  • Applications
  • Downloads
  • Accessories

The N1 Series TTL Laser Distance Sensor is designed for precise and stable distance measurement using phase-shift laser ranging technology, one of the most accurate methods for short- and medium-range applications.

By continuously modulating the emitted laser beam and analyzing the phase difference between transmitted and reflected signals, the sensor calculates distance with millimeter-level accuracy. This technology ensures high precision, strong repeatability, and excellent performance on small targets.

Specifications

Item Specification
Product Series N1 Series TTL Laser Distance Sensor
Measurement Principle Phase-Shift Laser Distance Measurement (CW Modulation)
Measuring Range 0.03–40 m (N1-040RBBH10ZZ) / 0.03–250 m (N1-250QABH10ZZ)
Resolution 0.1 mm
Accuracy ±(1 mm + D × 5‰), D = measured distance
Repeatability ±1 mm
Sampling Rate 1 Hz / 5 Hz / 10 Hz / 20 Hz (default 1 Hz)
Laser Wavelength 650 nm
Optical Power < 3 mW
Laser Class Class 2 (auto-switches to Class 3 under weak return signal)
Laser Spot Type Dot laser
Spot Size ≤ 6 mm @ 10 m
Laser Lifetime ~20,000 h (optional wide-temp version: 50,000–60,000 h)
Power Supply DC 5 V
Power Consumption 0.5 W @ 20 Hz; standby < 0.2 W
System Startup Time 600 ms
Communication Interface TTL UART
Baud Rate 4800 / 9600 / 19200 / 38400 / 57600 / 115200 (default 115200)
Serial Format 8 data bits, 1 stop bit, no parity, no flow control
Communication Protocols Modbus RTU / ASCII / Custom Hex
Reference Point Front reference
Operating Temperature –10 °C to +50 °C (optional –20 °C to +65 °C)
Storage Temperature –20 °C to +60 °C (optional –40 °C to +85 °C)
Operating Humidity < RH 85%
Dimensions (L×W×H) 53.69 × 30.28 × 17.8 mm
Net Weight 126.2 g
Gross Weight 187.2 g

Key Features & Benefits

Phase-Shift Measurement Technology

Delivers millimeter-level accuracy and excellent repeatability for short- and medium-range distance measurement.

Long Measuring Range in a Compact Form

Supports up to 250 m measurement range while maintaining a small footprint, enabling easy integration into space-constrained systems.

High Resolution and Stable Performance

0.1 mm resolution combined with ±1 mm repeatability ensures reliable data for precision control and positioning tasks.

TTL UART Interface for Easy Integration

Standard TTL communication simplifies connection with MCUs, controllers, and embedded systems without additional converters.

Low Power Consumption

Optimized power design enables continuous operation with minimal energy usage, suitable for embedded and mobile systems.

Flexible Communication Protocols

Supports Modbus RTU, ASCII, and Custom Hex, allowing seamless integration into various industrial and automation platforms.

Wide Environmental Adaptability

Operates reliably across a broad temperature range, with optional extended-temperature versions for demanding industrial environments.

Industrial Reliability

Designed for long service life and stable operation, making it suitable for automation, robotics, and OEM laser ranging applications.

Dimensions Product Dimension Chart
Measurement Range0.03–250 m, 0.03–40m
Accuracy±1mm

All Files

Title Upload Date File Type Action
MyAntennaRF_USB-to-TTL_RS232_Interface-Converter_User-Guide_v1.0_2024-03-12_EN-CN 2026-01-05 N/A Download
MyAntennaRF_USB-to-TTL_RS232_Interface-Converter_User-Guide_v1.0_2024-03-12_EN-CN 2026-01-05 N/A Download
Laser Distance Sensor Catalogue 2025 -MyAntenna 2025-12-26 N/A Download
L4 Series Lser Distance Sensor User Manual 250220 2025-12-26 N/A Download
L2 Series Lser Daistance Sensor User Manual 250325 2025-12-26 N/A Download
L3 Series Lser Distance Sensor User's Manual 231129 2025-12-26 N/A Download
L2 Series - User Manuals 2025-12-18 N/A Download
N1 Series User’s Manual 251112 2025-12-17 N/A Download
L1 Series Laser Distance Sensor -User Manual 2025-12-17 N/A Download
L1 Series - Laser Distance Senosr User Manual 2025-12-15 N/A Download
D1 Series User’s Manual 231205 2025-12-12 N/A Download

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