A Series 905nm Laser Rangefinder Module | 1~3Hz Laser Sensor

ERDI LASER® 905 nm Laser Rangefinder Module A series is a semiconductor, short-pulse distance sensor built for Time-of-Flight (ToF) measurement. It combines a high-peak 905 nm transmitter, precision receiver optics, and a digital timing chain to deliver meter-class accuracy from 5 m to beyond 1–2 km, depending on the variant and target reflectivity. Its eye-safe Class 1 emission and lightweight, ruggedized packaging make it ideal for UAV gimbals, mobile robots, vehicle turrets, handheld instruments, EO/IR pods, and industrial automation.

✅ 10+ Years Field Proven ✅ Lowest Total Cost of Ownership ✅ Stable Supply Chain ✅ IEC Class 1 Eye-Safe

	LRF1000A Check Now	LRF1200A1 Check Now	LRF1500A Check Now	LRF2000A Check Now
Laser divergence angle (typical)	4×6mrad	≤ 10mrad	3×6mrad	≤ 10mrad
Maximum range (Visibility ≥ 6Km) building targets	≥1000m @70% reflectivity	≥5~1200m	≥1500m @70% reflectivity	≥ 2000 m @ 70% reflectivity
Minimum range	5m	5m	5m	3 m @ 90% reflectivity, white board
Ranging accuracy (Construction target)	d≤200m:±0.7m d>200m:±（0.7+0.0004*d）m (d represents distance, in meters)	5≤L≤100m:±1m L＞100m:±(1+L*0.4%)m	≤200m:±0.7m d>200m:±（0.7+0.0004*d）m (d represents distance, in meters)	d≤200m:±0.7m d>200m:±（0.7+0.0004*d）m (d represents distance, in meters)
Shock	1200g,1ms	1200g,1ms	1200g,1ms	1000 g/ms (10 times/s along the optical axis)
Supply voltage	DC 3.3V~5V	DC3.3+/-0.1V	DC 3.3±0.1V	DC 3.3±0.1V
Standby Power Consumption	≤0.5W	≤400mW	≤0.5mW (Power on pulled low) ≤0.35W (Power on pulled high)	≤ 350 mW (Power-on pull-down) ≤ 1 mW (Power-on pull-up)
Operating power consumption	≤1.5W	(+3.3Vin) ≤1.5W@25℃ ≤1.75W@70℃ ≤1.38W@-20℃	(+3.3Vin) ≤1.5W@25℃ ≤1.75W@70℃ ≤1.38W@-20℃	(+3.3Vin) ≤1.8W@25℃ ≤2.1W@70℃ ≤1.6W@-20℃
Weight	10±0.5g	18g	11±0.5g	12±0.5g
Dimensions	Φ17×37.2 mm	Ф23mm X 40mm	26×25×14.5mm	26×25×14.5mm

Typical Applications

The A Series is ideal for static and low-dynamic applications where long-term reliability, stable supply, and low total cost of ownership are the top priorities. It has been widely adopted in the following industries:

Thermal Weapon Sights & Night Vision Systems

The A Series offers exceptional shock resistance, low power consumption, and long-range detection capabilities, making it the preferred choice for thermal weapon sights and night vision observation devices. ERDI's own thermal imaging products use the LRF2000A module, which has been proven in thousands of field deployments worldwide.

Handheld Laser Rangefinders

With its mature platform, competitive pricing, and stable supply chain, the A Series is the most popular solution for mass-produced handheld laser rangefinders. It provides reliable distance measurement for outdoor sports, hunting, golf, and construction applications.

Surveying & Mapping Equipment

The A Series delivers consistent and accurate distance measurements, making it suitable for basic surveying, construction layout, and topographic mapping equipment. Its compact size and low power consumption allow for integration into portable and battery-powered devices.

Long-Range Monitoring & Surveillance

The long-range models (LRF1500A and LRF2000A) are ideal for fixed-site long-range monitoring systems, border surveillance, and perimeter security applications. Their low power consumption makes them suitable for solar-powered and remote unattended installations.

Explore Other ERDI 905nm Product Series

1000m Module

This comparison of LRF1000A, LR1000B23, LR1000C3, and LR1000C4 helps engineers and product developers quickly determine the optimal module for their application.

D Series（600m~1500m）

Ready to Get Started?

Whether you need 100 units for a prototype run or 100,000 units for mass production, the A Series delivers the reliable performance and competitive pricing you need. We also offer flexible OEM/ODM customization options, including modified mechanical dimensions, custom communication protocols, and firmware adjustments.

📧 yeva@erdimail.com (responses within 24 hours)

📞+86 18123396539

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