Home › Answers › Which laser rangefinder module works for por

Which laser rangefinder module works for port crane and container positioning?

Industrial positioning is a different problem from long-range observation: the target is metres away, the requirement is repeatability and update rate, and the module lives in a steel structure with vibration and weather. For those jobs the short-range end of the catalogue matters more than the 20 km headline, and the interface (RS-422 or UART) plus the sampling rate decide whether the controller can use the number.

Matching modules from the catalogue

Model	Wavelength	Published range	Accuracy	Mass	Interface
LRF0105C	1535 nm	3 km	±2 m	29 g	—
LRF0310C	1535 nm	3 km	±1 m	32 g	—
LRF3000A1	905 nm	3 km	±0.7 m	12 g	UART-TTL
LR2000E2	905 nm	2 km	±1 m	—	UART-TTL
LR2000E4	905 nm	2 km	±1 m	—	UART-TTL
LR1500D23	905 nm	1.5 km	±1 m	20 g	UART-TTL

The conditions behind those numbers

LRF0105C — Reference target 2.3 × 2.3 m: ≥3,000 m; human-size target 0.5 × 1.7 m: ≥1,500 m. Reflectance 30%; visibility ≥5 km.
LRF0310C — ≥3,000 m. Source names a 2.3 × 2.3 m reference target; parenthetical: 2.3 × 4.6 m board or vehicle, relative humidity ≤60%, visibility ≥8 km. Row heading: reflectance 30%, visibility ≥5 km. See the source clarification below; target and visibility descriptions are inconsistent.
LRF3000A1 — ≥3,000 m
LR2000E2 — 4–2,000 m
LR2000E4 — 4–2,000 m
LR1500D23 — 4 m – 1,500 m

Full detail and the manufacturer's original wording: industrial distance sensing · all 59 range conditions · filter the catalogue yourself

Questions people ask about this

Why not just use the longest-range module?

Long range costs aperture, mass and pulse energy. For a target a few metres away it buys nothing and makes the housing bigger.

What matters most for a crane controller?

Repeatability and update rate, then the interface. A noisy reading at 10 Hz is worse than a stable one at 2 Hz.

Is a rangefinder the right sensor at all?

For a reflective target at a known angle, yes. For a diffuse container surface at an unknown angle, check the beam divergence and spot size at that distance first.

Send the requirement, not a part number Target size, reflectance, required range, mass budget, interface, quantity. Two candidates and their limiting factor come back. Email specs@erdilrf.com All answers

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.