Home › Series › LR series

LR series — 905 nm integrated rangefinder modules

Silicon-detector modules for 1 to 2 km against vehicle-sized targets: 10 to 20 g, UART or IIC, 10 Hz or better. The cost-efficient choice when a 1535 nm budget is not justified.

11 models · published range 1 km – 2 km · mass 10–20 g · filter the whole matrix

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 11-model series usually quotes several different targets.