Weighing ≤75g, the 4km module bridges the gap between ultra-lightweight micro-modules and long-range border surveillance turrets. It provides an optimized mechanical profile for 4-inch to 6-inch multi-spectral gimbal spheres, handheld tactical binoculars, and perimeter surveillance cameras requiring instant range feedback.
The internal optical housing utilizes dedicated thermal conduction paths surrounding the Er:Glass active cavity. This architecture ensures consistent measurement precision (±1 m) across an industrial operating temperature envelope of -40°C to +60°C while preserving signal integrity against digital video transmission interference.
Features fast return acquisition (≤0.5 s response). The integrated front-end logic discriminates true targets against clutter such as foliage, tree branches, or maritime spray, delivering dependable distance output under challenging outdoor conditions.
| Laser Wavelength | 1535 nm ± 5 nm |
|---|---|
| Laser Beam Divergence | 0.4 mrad ± 0.1 mrad |
| Maximum Measuring Range | ≥4 km |
| Minimum Measuring Range | ≤30 m |
| Laser Repetition Frequency | 1 Hz–10 Hz adjustable |
| Ranging Accuracy | ≤±2 m |
| Ranging Success Rate | ≥98% |
| Ranging Mode and Duration | Maximum continuous ranging time per operation: ≥30 min |
| Supply Voltage | DC 9–15 V |
| Power Consumption |
Standby power consumption: ≤1.5 W; Rated power consumption: ≤3.5 W; Peak power consumption: ≤7 W |
| Communication Interface | RS-422 / TTL |
| Dimensions | ≤55 mm × 34 mm × 45 mm |
| Weight | ≤75 g |
| Operating Temperature | -40°C to +70°C |
| Storage Temperature | -50°C to +75°C |
| Laser Optical Axis Stability | ≤0.3 mrad over the full temperature range |
| Parallelism Between Laser Optical Axis and Mounting Reference | ≤0.3 mrad |
Note: All performance parameters and interface options can be customized upon request.
This module is designed for dedicated SWaP and payload requirements. For full optical axis calibration protocols, multi-sensor EO/IR gimbal engineering data, and side-by-side SWaP specifications, review our central catalog of OEM 1535nm Laser Rangefinder Modules (3km–20km) .
Non-Disclosure Agreement (NDA):We respect your proprietary system designs. Huanxin is glad to sign a mutual NDA before receiving detailed payload drawings or project specifications.