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HENSOLDT LP19D alternative — 1535 nm OEM rangefinder modules

The LP19D is HENSOLDT's open-frame 1535 nm eye-safe rangefinder: a self-contained unit with transmitter, receiver and control electronics, meant to sit inside a larger observation system. It is a mature, well-documented reference point — and it is also a single-source part with defence-grade lead times. This page puts its published figures next to the ERDI modules that do the same job.

Competitor figures quoted from HENSOLDT product page (LP19D), accessed 2026-10-23. Nothing here is inferred: where the public page is silent, we say so below.

HENSOLDT LP19D — as published

Laser wavelength	1535 nm, diode-pumped Er-Glass
Published range	up to 15 km (page gives no target or visibility condition)
Accuracy	within 3 m
Interface	RS232 or RS422
Form	open frame, self-contained unit (transmitter, receiver, power and control electronics)
Export note	manufacturer states "Not subjected to any EU or USA export controls"

What that page does not publish

No mass, dimensions, supply voltage or temperature range on the public page.
No test condition for the 15 km figure — target size, reflectance and visibility are not stated.
No update rate, no beam divergence, no multi-target behaviour published.
No interface protocol document on the public page.

This matters more than it looks: a range figure without target size, reflectance and visibility is not comparable to anything, including our own numbers. It is the single most common reason a design-in fails late.

ERDI modules in the same class

ERDI model	Wavelength	Max range	Accuracy	Update rate	Mass	Interface
LRF1525C	1.54 µm	15 km	±2 m	10 Hz	400 g	RS-422
LRF1221C	1.54 µm	12 km	±2 m	10 Hz	275 g	RS-422
LRF1017C	1.54 µm	10 km	±2 m	10 Hz	275 g	RS-422

For comparison, the test condition published for LRF1525C:
4m × 6m Objective ≥15 km

Like-for-like only where the product class matches. A finished instrument and an OEM module are different purchases: the module leaves optics, housing, display and the safety case to you.

Verdict

If your requirement is 1535 nm, roughly 15 km class, RS-422, and you need a second source with published test conditions, the LRF1525C is the closest like-for-like: 15 km published, ±2 m, 0.3 mrad, 400 g, RS-422. If 12 km is enough, LRF1221C saves 125 g.

Tell us the target and we will tell you which one makes range Target size, reflectance, required distance, visibility, interface, mass budget. Email tommy@erdimail.com Filter all 59 models

Competitor names and trademarks belong to their owners; this page is a technical comparison based on published figures, not an endorsement or a claim of equivalence. Sources: HENSOLDT product page (LP19D) · our model pages · accessed 2026-10-23.