LRF-1570-20K35 is a high-precision and long-distance ranging laser rangefinder module made out of OPO lasers and detectors that both developed by ERDI. It is a small, light and eye-safe laser rangefinder module with low power consumption.. Operating temperature of this module is -40℃~65℃. With its great environmental adaptability and stable performance, it can achieve long-dstance, high-speed and continuous ranging.
| Parameters | Specification | Note. |
| Wavelength | 1570±5nm | |
| Ranging capability | 100m~20km | |
| Ranging ability | ≥20km(2.3m×2.3m, 0.3 reflectivity vehicle, visibility≥30km) | Humidity≤80% |
| ≥35km(for large targets, visibility≥35km) | ||
| Ranging accuracy | ±3m | |
| Ranging repetition rate | 1~10hz(adjustable) | |
| Accuracy | ≥98% | |
| Divergence angle | ≤0.8mrad | |
| Receiving aperture | 67mm | |
| Communication interface | RS422 | |
| Supply voltage | DC18~32V | |
| Operating power | ≤20W(@1hz) | Tested under room
temperature |
| Stand-by power | ≤2W | Tested under room temperature |
| Dimension | ≤214.3mm×125.5mm×82mm | |
| Weight | ≤2.3kg | |
| Temperature | -40℃~65℃ | |
| Heat-dissipating | By fan |
| Line NO. | Definition | Note. |
| 1 | Direct current | +24V Direct current |
| 2 | ||
| 3 | ||
| 4 | ||
| 5 | GND(direct current) | +24V GND |
| 6 | ||
| 7 | ||
| 8 | ||
| 9 | Serial port T+（from a laser rangefinder to upper computer+） | RS422 |
| 10 | Serial port R-（from upper computer to a laser rangefinder-） | |
| 11 | Serial port T-（from a laser rangefinder to upper computer-） | |
| 12 | Serial port R+（from upper computer to a laser rangefinder+） | |
| 13 | RS422 GND（connection is not necessarily required） | |
| 14 | SYN+ | RS422 differential external trigger, width＞10us |
| 15 | SYN- |
| Line NO. | Definition | Note. |
| 1 | Direct current | +24V Direct current |
| 2 | ||
| 3 | ||
| 4 | ||
| 5 | GND(direct current) | +24V GND |
| 6 | ||
| 7 | ||
| 8 | ||
| 9 | Serial port T+（from a laser rangefinder to upper computer+） | RS422 |
| 10 | Serial port R-（from upper computer to a laser rangefinder-） | |
| 11 | Serial port T-（from a laser rangefinder to upper computer-） | |
| 12 | Serial port R+（from upper computer to a laser rangefinder+） | |
| 13 | RS422 GND（connection is not necessarily required） | |
| 14 | SYN+ | RS422 differential external trigger, width＞10us |
| 15 | SYN- |
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