1535nm 6km Laser Rangefinder

KEY FEATURES Small size and lightweight Class I human eye safety standards Stable performance and easy-to-use Provide customization service Distance measurement for vehicle(2.3*2.3m) over 6km Developed based on 1535nm Er: Glass Laser

APPLICATIONS Laser Ranging Targeting Security

Product Description

The ELRF-F21 laser Rangefinder Module is a laser ranging module developed based on our company's independently researched and developed 1535nm Erbium laser. lt adopts a single-pulse Time-of-Flight (TOF)ranging method with a maximum ranging distance of ≥6km. Composed of a laser, transmitting optical system, receiving optical system, and control circuit board, it communicates with the host computer through RS422 serial port. It provides host computer test software and communication protocols,facilitating user secondary development. It boasts features such as small size,light weight, stable performance, high shock resistance, and Class 1 eye safety.

Technical Data

Item	Parameter
Eye-Safety Level	Classl
Laser Wavelength	1535±5nm
Laser Beam Divergence	0.3mrad
Receiver Aperture	Φ21mm
Maximum Range	≥10km (large target: building)
	≥8km (vehicle: 2.3m×2.3m)
	≥5.5km (person: 1.7m×0.5m)
Minimum Range	≤20m
Ranging Accuracy	≤±1m
Measurement Frequency	1～10Hz
Range Resolution	≤30m
Probability of Ranging Success	>98%
False-Alarm Rate	≤1%
Data Interface	RS422 serial,CAN(TTL optional)
Supply Voltage	DC5~28V
Average Power Consumption	≤1W @ 5V (1Hz operation)
Peak Power Consumption	≤3W@5V
Stand-by Power Consumption	≤0.2W
Form Factor / Dimensions	≤65m×40mm×28mm
Weight	≤55g
Operating Temperature	-40℃~+60℃
Storage Temperature	-55℃~+70℃
Impect	>75g@6ms

NOTE:

• The laser emitted by this ranging module is a 1535nm laser that is safe for human eyes. Although it is within the eye-safe wavelength range, it is advised not to look directly into the laser beam.

• When adjusting the parallelism of the three optical axes, be sure to cover the receiving lens. Failure to do so may result in permanent damage to the detector due to excessively strong return signals.

• This range-finding module is not airtight. Ensure that the relative humidity of the operating environment is below 80% and that the environment is clean and hygienic to prevent damage to the laser.

• The measuring range of the ranging module depends on atmospheric visibility and the nature of the target. Range measurements will be reduced in fog, rain, and sandstorm conditions. Targets like clusters of green leaves, white walls, and exposed limestone have a higher reflectivity, which can increase the measuring range. Additionally, the range decreases as the angle of the laser beam to the target increases.

• It is strictly forbidden to emit lasers at highly reflective targets such as glass or white walls within 20 meters, as strong reflections may cause damage to the APD detector.

• Do not plug or unplug cables while the device is powered on. Ensure that the power supply polarity is connected correctly to avoid permanent damage to the equipment.