LRF-C series — 1535 nm OEM rangefinder modules
The long-range core of the catalogue: passively Q-switched erbium-glass transmitters with InGaAs receivers, 3 to 23 km published range, 14 to 410 g. These are the modules that fit inside a sight, a gimbal or an observation head, and take an external harness.
| Model | Max range | Accuracy | Rate | Mass | Interface |
|---|---|---|---|---|---|
| LRF1829C | 23 km | ±2 m | 10 Hz | 400 g | RS-422 |
| LRF1830C | 23 km | ±2 m | 10 Hz | 400 g | UART + RS-422 |
| LRF1525C | 15 km | ±2 m | 10 Hz | 400 g | RS-422 |
| LRF1221C | 12 km | ±2 m | 10 Hz | 275 g | RS-422 |
| LRF1222C | 12 km | ±2 m | 10 Hz | 335 g | RS-422 |
| LRF1831C | 12 km | ±2 m | 10 Hz | 410 g | RS-422 |
| LRF1017C | 10 km | ±2 m | 10 Hz | 275 g | RS-422 |
| LRF0815C | 8 km | ±2 m | 10 Hz | 175 g | UART + RS-422 |
| LRF0816C | 8 km | ±2 m | 10 Hz | 58 g | — |
| LRF0818C | 8 km | ±2 m | 10 Hz | 65 g | UART-TTL |
| LRF0609C | 6 km | ±2 m | 10 Hz | 62 g | UART-TTL |
| LRF0610C | 6 km | ±2 m | 10 Hz | 90 g | UART + RS-422 |
| LRF0612C | 6 km | ±2 m | 10 Hz | 58 g | — |
| LRF0405C | 4 km | ±2 m | 10 Hz | 32 g | UART-TTL |
| LRF0305C | 4 km | ±1 m | 10 Hz | 14 g | UART-TTL |
| LRF0306C | 4 km | ±1 m | 3 Hz | 14 g | UART-TTL |
| LRF0105C | 3 km | ±2 m | 10 Hz | 29 g | — |
| LRF0310C | 3 km | ±1 m | 10 Hz | 32 g | — |
| LRF3000A1 | 3 km | ±0.7 m | 10 Hz | 12 g | UART-TTL |
| LRF1200A1 | 1.2 km | ±1 m | 3 Hz | 18 g | UART-TTL |
What this family is, in integration terms
A rangefinder module is a component: it provides a laser channel, a receiver and a data interface, and your product supplies the optics, the housing and the safety case. Mass and interface decide whether it fits, and both are in the table above.
- Reflectance appears twice in a datasheet. Where a sensor publishes 90 % and 10 % columns, the 10 % column is the real-world number — an AGV looks at a matte surface, not a retro-reflector.
- Update rate is not accuracy. 200 Hz with centimetre resolution is a good control input and a poor measuring instrument; decide which you are building.
- Ambient-light immunity (published in klx on several of these) decides outdoor usability far more than the headline range does.
Choosing inside this series
Range, mass and interface move together here: the longest-reach parts are the heaviest and run RS-422, while the lightest parts are short-range and run UART-TTL. Pick the two you cannot negotiate, then read the model page for the test condition behind the range figure — a 20-model series usually quotes several different targets.