CA109 Laser Distance Sensor

CA121 Long-Range

Laser Distance Module

A 3,000m Horizon Series rangefinding platform with light PPS and metal housing options for different integration needs.

 

Range: 3,000m Range

Weight: 30g (PPS) / 65g (Metal)

Interface: UART / TTL

INTRODUCTION

The CA121 is a Horizon Series platform for qualified long-range UAV, monitoring, mapping, and industrial projects. Its listed measurement modes and housing options let teams evaluate different speed, range, weight, and mechanical priorities before application-level validation.

APPLICATIONS

  • Long-Range Monitoring: Commercial perimeter and site monitoring.
  • UAS & Drone Operations: Altitude holding, terrain following, and precision landing.
  • Geodetic Surveying: Long-distance mapping and topography.
  • Industrial Automation: Stockpile measurement and bulk material management.

TWO MATERIAL OPTIONS

Choose the Light Version (PPS) at just 30g for weight-critical UAVs, or the Heavy Version (Metal) for maximum durability and heat dissipation in industrial environments.

10Hz FAST MEASUREMENT

Evaluate moving-target performance using the listed 10Hz mode. The available signal-strength mode can support application testing for mapping workflows.

UNIVERSAL DRONE READY

The UART and Lua-script workflow supports Ardupilot or Pixhawk evaluation. Confirm controller, port, firmware, and setup compatibility before deployment.

Ardupilot Integration Workflow

Evaluate CA121 integration with compatible flight controllers through its documented UART workflow.

(Cube Orange, Holybro Pixhawk 6) via UART.

1. Universal Logic: Works via standard Serial/TTL. No proprietary CAN drivers required.

2. Lua Scripting Support: Use the available script to evaluate altitude-holding and terrain-following functions.

Display filename: ca121_driver.lua

Code Snippet Preview:

local port = serial:find_serial(0)
local baud = 19200
-- CA121 Continuous Measure Command
local cmd_start = "\xAA\x02\xF1\x9D"
port:begin(baud)
gcs:send_text(6, "CA121 Laser Ready")

SPECIFICATION

 

Model No.
CA121
Remark
Maximum Measuring Range
3,000 meters
Expected Value 3σ, Kodak White Boar.
Optimal Range 3,600m.
Minimum Measuring Range
5 meters
Repeatability Accuracy Within 100 Meters
±0.5 meters
Repeatability Accuracy Within 100 Meters - 500 Meters
±1 meters
Standard Deviation 2σ, Kodak White Board
Repeatability Accuracy Over 500 Meters
±0.5%*Distance
Response Time
0.3 - 0.8 Seconds
Single Measurement Mode
Unit
Meters
Power Source
3.6V - 5V ±0.2V
Standby Consumption
200mA
Measuring Consumption
900mA
Laser Radiation
Class 1
Laser Wavelength
905nm
Operating Temperature Range
-10°C~50°C
Storage Temperature Range
-40°C~60°C
Serial Port Type
UART
Dimensions
52.5 x 40.5 mm x 26
Weight
65.4g / 2.3Oz

Metal Frame
30g / 1.05Oz
Engineering Plastic Frame

Dimension

CA121 3km range laser distance module diagram

Discuss Your Application

Share your measurement requirements, interface, environment, project stage, and expected volume.

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