About This Product

The GRF-500 uses a 905 nm laser to measure target distance using time-of-flight technology. Its compact 10.7 g form factor makes it suitable for space- and weight-constrained gimbal systems. It can measure distances up to 500 m under the manufacturer’s specified test conditions and provides configurable measurement rates from 0.5 to 10 readings per second.

Key Features

Up to 500 m ranging capability
Extremely lightweight 10.7 g design
Compact form factor for gimbal integration
905 nm laser
Adjustable update rate
USB, UART and I²C interfaces
3.3 V TTL with 5 V tolerance
Designed for EO/IR payload integration
Suitable for AGL measurement
Useful for security and surveillance applications
Low power design for UAV applications

Technical Specifications

Specification	Details
Model	GRF-500
Product Type	Laser Rangefinder
LiDAR Type	Static Single Beam
Measurement Range	0.2–500 m
Range Test Condition	5 Hz, 40% albedo, 23 km visibility, 4 × 4 m target
Wavelength	905 nm
Update Rate	0.5–10 readings/sec
Accuracy	±50 cm (1 sigma)
Weight	10.7 g
Dimensions	35 × 31 × 21 mm
Mechanical Boresight	±1.5°
Interfaces	USB, Serial UART & I²C
Logic Level	3.3 V TTL, 5 V tolerant
Operating Temperature	-20°C to +60°C
Laser Safety	Class 1M
Pulse Width	36 ns
Pulse Frequency	20 kHz
Average Laser Power	2.0 mW

GRF-500

LightWare GRF-500 500m