





STA-LRB1220X laser ranging module is equipped with Stalaser’s independently developed 1535 nm erbium-glass laser assembly. It features a compact structure, low power consumption, and a ranging capability of up to 12km for typical NATO targets. With stable and reliable performance, it facilitates system integration and secondary development, making it an ideal core component for various compact long-range electro-optical systems.
Range performance:12000m (2.3×2.3m NATO Targets),20000m (Maximum range)
Ranging accuracy ± 1m
Measurement accuracy ≥ 98%
Weight ≤ 350g
Main functions:
(1) Single ranging and continuous ranging;
(2) Responding to laser ranging commands, and can stop ranging at any time according to the stop command;
(3) Output distance data and status information once per pulse during distance measurement;
(4) It can report the cumulative number of transmitted laser pulses (no loss of power down);
(5) Distance selection, front and rear target indication;
(6) Self-test function.
Product Introduction:
The LRB1220X laser rangefinder module is a military pulse laser rangefinder designed for application scenarios such as aircraft, unmanned aerial vehicles, tanks, and scope. It has small size, light weight, low power consumption, stable performance, long measurement distance, and long service life, Human eye safety and other advantages, it is an important technical equipment to improve product aiming accuracy.
Product performance index for LRB1220X Eye-safe LRF Module:
| Item | Technical parameter | Instruction |
| Model | STA-LRB1220X | |
| Working wavelength | 1535±5nm | |
| Eye safety | Class 1 (IEC 60825-1) | |
| Receiving Aperture | Φ57mm | |
| Emission aperture | Φ19mm | |
| Ranging capability | 50m-20km | |
| Ranging range | ≥20000m | Max Range,Reflectivity: 0.9, observer visibility 25 km |
| ≥15000m | Big target,Reflectivity: 0.6, observer visibility 25 km | |
| ≥12000m | NATO target | |
| ≥6500m | Human target | |
| ≥3200m | UAV target | |
| Mini Range | 50m | |
| Multi-target detection | Up to 3 target | |
| Ranging accuracy | ±2m | RMS |
| Ranging frequency | 1~10Hz adjustable | |
| Accuracy rate | ≥98% | |
| False alarm rate | 1% | |
| Divergence angle | ≤0.3mrad | |
| Communication Interface | RS422 | TTL Customizable |
| Voltage | DC 5~32V | |
| Starting current | ≤1A | |
| Working power | ≤3W | Normal temperature test |
| Peak power | ≤6W | Normal temperature test |
| Mechanical Shock | 75g,1ms | |
| Working temperature | -40℃~+60℃ | |
| Storage temperature | -55℃~+70℃ | |
| Reliability | MTBF ≥ 1500h | |
| Size | ≤90mm×63mm×82mm | |
| Weight | ≤350g | |
| Main Function | First and last target ranging; Multi-target ranging; Distance selectivity; | |
| More function | 1. Distance blind spot setting gating function;
2. Self checking function (high voltage, temperature, etc.); 3. Distance resolution: 30m; |
|
Notes:
1) NATO target size 2.3 m × 2.3 m; Human target size 0.5 m × 1.7 m; UAV target size 0.2 m × 0.3m; Reflectivity 30%, Humidity≤60%,observer visibility≥ 25km
Structure installation interface:

Centroid diagram:

External Interface:

| Pin | Definition | Function | Notes |
| 1 | RX+ | RS422 Receiver + | Blue |
| 2 | RX- | RS422 Receiver – | Green |
| 3 | TX- | RS422 Transmission – | Purple |
| 4 | TX+ | RS422 Transmission + | Yellow |
| 5 | GND | Communication ground wire | White |
| 6 | VEE | Power supply + | Red |
| 7 | GND | Power supply – | Black |
| 8 | PWR EN | / | Ash |
| Interface connector | |||
| A1251WR-S-8P-LCP | Wire-to-Board Connector Header | ||
| A1251WR-S-8P | 8Pin connecting cable | ||

Range performance maximum
30 km
Range performance on 2.3 x 2.3 m
18 km
Typical accuracy
±3 m
Range performance maximum
15 km
Range performance on 2.3 x 2.3 m
8 km
Typical accuracy
±1 m
Range performance maximum
12 km
Range performance on 2.3 x 2.3 m
6 km
Typical accuracy
±1 m
Range performance maximum
12 km
Range performance on 2.3 x 2.3 m
6 km
Typical accuracy
±1 m
Range performance maximum
10 km
Range performance on 2.3 x 2.3 m
5 km
Typical accuracy
±1 m
Range performance maximum
8 km
Range performance on 2.3 x 2.3 m
3 km
Typical accuracy
±1 m