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What drives the price of a 1535 nm laser rangefinder module?
No price is published here, but the cost drivers are not secret: the erbium-glass gain medium and its pump, the detector and its amplifier chain, the optics aperture needed to reach the stated range, and the interface and housing. Range and mass pull in opposite directions — the 23 km models carry a far larger aperture than the 14 g payload modules — so the cheapest way to overpay is to specify a range the application does not need.
Matching modules from the catalogue
| Model | Wavelength | Published range | Accuracy | Mass | Interface |
|---|---|---|---|---|---|
| LRF1829C | 1535 nm | 23 km | ±2 m | 400 g | RS-422 |
| LRF1830C | 1.54 µm | 23 km | ±2 m | 400 g | UART + RS-422 |
| LRF1525C | 1.54 µm | 15 km | ±2 m | 400 g | RS-422 |
| LRF1221C | 1.54 µm | 12 km | ±2 m | 275 g | RS-422 |
| LRF1222C | 1.54 µm | 12 km | ±2 m | 335 g | RS-422 |
| LRF1831C | 1535 nm | 12 km | ±2 m | 410 g | RS-422 |
The conditions behind those numbers
- LRF1829C — a) Under line-of-sight conditions, with visibility not less than 26 km and humidity not greater than 50% (at 30 °C), the ranging distance for a vehicle target (3 m × 3 m) is ≥ 18,000 m. b) Under line-of-sight conditions, with visibility not less than 30 km and humidity not greater than 50% (at 30 °C), the ranging distance for a target with diffuse reflectance not less than 30% (6 m × 6 m) is ≥ 23,000 m.
- LRF1830C — ≥23,000 m to a 6 × 6 m diffuse target, reflectance ≥30%; line of sight; visibility ≥30 km; relative humidity ≤50% at 30 °C
- LRF1525C — 4m × 6m Objective ≥15 km
- LRF1221C — 4m × 6m Objective ≥12 km
- LRF1222C — Reference target(2.3m × 2.3m) ≥12 km
- LRF1831C — a) Under line-of-sight conditions, with visibility not less than 15 km and humidity not greater than 80% (at 30 °C), the ranging distance for Target 1 (5 m × 15 m) is ≥ 6,500 m. b) Under line-of-sight conditions, with visibility not less than 15 km and humidity not greater than 80% (at 30 °C), the ranging distance for a target with diffuse reflectance not less than 30% (20 m × 20 m) is ≥ 12,000 m.
Questions people ask about this
Why not list a price list?
Because the configuration changes the price: interface, optics, housing and quantity. A list price would be wrong for most buyers.
What is the biggest cost lever?
Range. It drives aperture, pulse energy and mass more than any other single requirement.
How do I get a comparable quote?
State the model, the interface, the quantity and the application scene. That is all a supplier needs to quote against a fixed configuration.
Figures transcribed from manufacturer pages on 2026-10-26. Conditions are quoted verbatim; nothing here extrapolates a range to a target the manufacturer did not test.