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Newcon LRM 2K alternative — the module inside the monocular

The LRM 2K is a finished handheld: 7x24 monocular, 905 nm, Class 1, 10–2,000 m, 235 g, IP67. It is not a module, so it is not a like-for-like comparison — but it is the reference many buyers cite when they ask what a 2 km rangefinder should cost and weigh. This page separates the instrument from the sensor inside it.

Competitor figures quoted from Newcon Optik product page (LRM 2K), accessed 2026-10-23. Nothing here is inferred: where the public page is silent, we say so below.

Newcon Optik LRM 2K — as published

Laser wavelength	905 nm
Laser class	Class 1, eye-safe
Measuring range	10 – 2,000 m (2,200 m to highly reflective targets)
Accuracy	±1 m below 500 m, ±2 m from 500 m
Interface / output	internal display (TOLED); no external data interface published
Mass / size	235 g without battery; 106 x 76 x 39 mm; IP67; −20 to +50 °C

What that page does not publish

No external serial interface is documented — it is an instrument, not an OEM module.
No beam divergence, no receiver aperture, no update rate published.
The 2,200 m figure is stated for highly reflective targets, with no reflectance value.

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
LR2000E2	905 nm	2 km	±1 m	10 Hz	—	UART-TTL
SPD1200N2	905 nm	1.5 km	±0.3 m	15 Hz	5 g	UART-TTL
LRF1200A1	905 nm	1.2 km	±1 m	3 Hz	18 g	UART-TTL

For comparison, the test condition published for LR2000E2:
4–2,000 m

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 you are building a product rather than buying an instrument, the sensor equivalent is a 905 nm module in the 2 km class: LR2000E2 (±1 m, UART-TTL, 10 g) or the SPD1200 family at 1.2–1.5 km. You add optics, display and housing — and you stop paying for a monocular you did not need.

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: Newcon Optik product page (LRM 2K) · our model pages · accessed 2026-10-23.