To meet customers' needs for short-to-medium distance detection, ERDI TECH LTD offers 905nm diode laser rangefinders, supporting distance measurement from 5m to 4km. With a mature supply chain and cost-effectiveness, our 905nm rangefinders are widely used in LiDAR, laser distance meters, industrial sensing, medical devices, and consumer electronics.

1. Definition

The 905nm laser is a GaAs-based semiconductor laser emitting near-infrared (NIR) light at 905nm. Though invisible, this wavelength is efficiently detected by silicon-based sensors (CMOS/APD) and exhibits low atmospheric attenuation. Compared to 1064nm lasers, 905nm lasers offer higher eye safety compliance with IEC 60825 standards.

2. Technical Features

Mature Technology & Cost-Effectiveness

Built on GaAs materials and mature semiconductor processes (EEL/VCSEL), the module integrates seamlessly with silicon-based detectors (no expensive InGaAs components needed). This ensures high cost-efficiency and mass-production capability.

High Integration & Environmental Adaptability

The compact, low-power design enables easy integration into systems and handheld devices, even in extreme environments. For example, ERDI’s LRF1200A measures 25×26×13mm, weighs 10g, and operates at -40~+60℃, suitable for automotive LiDAR and smartphone ToF lenses.

Short-Distance High-Precision Ranging
Different models cover 5m to 4000m measurement ranges. The LRF4000A, a highly integrated module with optimized optical lenses, achieves precise 4000m ranging and supports DIY laser ranging projects.

3. Comparison of Applicable Scenarios for Different Wavelengths of 1064nm, 1535nm, and 905nm

Choose the wavelength that best fits your requirements.