Every ERDI model is published with a unit price
Most laser rangefinder suppliers answer a price question with a form. ERDI publishes a per-unit figure for all 59 catalog models, from $70 to $5,000, before anyone asks for an email address. The numbers below are read directly from the same catalog the product pages are built from, so a buyer can check any single model against its own page.
What a published price does not tell you is what a 500-piece order costs. Volume terms, test coverage, cable assemblies and custom firmware are quoted in writing — but the starting point is public, so you can tell immediately whether a supplier is in your budget or three times over it.
Where the source documents for a model conflict — for example LRF1200A1, LRF3000A1, LRF50VB and LRF1500H, whose records carry more than one figure for a field — the model page states the conflict instead of picking one value for you, and the current datasheet governs the order.
Published price bands
| Band | Representative models | Typical role |
|---|---|---|
| Under $100 | ER100 $70 · LR1000E2 / LR1000E4 $80 · LRF10VB $80 · LR1200E2 / LR1200E4 $90 · LRF1200A1 $90 · LRF22VB $90 · SPD1200N0 $90 · SPD1200N3 $94.5 | Short-range DToF, 1 km UART modules, entry integration |
| $100 – $200 | LR1000D23 $110 · LR2000E2 / LR2000E4 $120 · LR1200D23 $130 · LR1500D23 $140 · LRF50VB $140 · SPD1200S2 / SPD1200Z2 $150 · LRF50H $160 · LRF3000A1 $200 · SPD1200ZG $200 | 1–2 km ranging, industrial 50 m sensing, 3 km long range |
| $200 – $400 | ER400 $230 · LRF100H $230 · ER500 $250 · LRF200H $250 · LRF300H $280 · LRF0105C / LRF0305C / LRF0306C / LRF0310C $300 · LRF600H $350 · LRF0405C $400 · LRF1500H $400 | 200–600 m industrial, eye-safe 1535 nm starting point |
| $800 and up | LRF0609C / LRF0610C / LRF0612C $800 · LRF0815C / LRF0818C $900 · ER800 $1,050 · LRF0816C $1,200 · LRF1017C $1,300 · ER2000 $1,500 · ER8000 $3,000 · LRF1829C $3,500 · ER10000 $5,000 | Multi-kilometre eye-safe ranging, 1.54 µm laser sources |
Two things worth noticing in that table. First, the 905 nm line is not uniformly cheaper than the 1535 nm line — a 3 km 905 nm module ($200) sits below the cheapest long-range 1535 nm module ($300), but above most short-range units. Second, the most expensive models are not the longest-range ones by accident: eye-safe 1.54 µm systems at 8–18 km carry the laser source, receiver and timing electronics that the price reflects.
What volume actually changes
- Unit price. Published figures are single-unit source values. Volume terms are quoted per order and depend on model, test coverage and delivery schedule.
- Test documentation. A production batch can ship with acceptance records against the same conditions the datasheet states — reflectivity, visibility, temperature band. That is usually worth more to a system integrator than a few percent of unit price.
- Mechanical and firmware variants. Connector, cable length, mounting, baud rate, output frame format. These are engineering changes, not discounts, and they affect lead time.
- Nothing about the specification. A volume order does not unlock a better range figure. If the module is specified to a 2.3 m × 2.3 m target at 30% reflectance, it is specified to that at any quantity.
How to read a competing quotation
A laser rangefinder price is only comparable when four things are stated. Ask for them before comparing numbers:
- The ranging condition behind the range figure. Target size, reflectance, visibility and whether the figure is a maximum or a repeatable value.
- The interface. UART-TTL, RS232, RS485, I²C — and the frame format with its checksum, not just “serial output”.
- The minimum range / blind zone. Two suppliers can both say “1,200 m” while one cannot measure below 15 m and the other starts at 4 m.
- What is in the box. Bare module, module with cable, module with housing, module with acceptance test report.
Every ERDI model page states the condition behind its published range, the interface, and the price. Where the source document does not state a value, the page says so instead of filling the gap.
Three ways to buy
One unit. Evaluation quantities ship without a distributor in between. Tell us the application and operating conditions and we will point at the two or three models that fit, rather than the whole catalog.
Ten to fifty units. Pilot builds and first production runs. This is where interface variants and acceptance criteria get settled, and where a written quotation replaces the published unit figure.
Series production. Volume terms, scheduled deliveries and batch acceptance records. The engineering questions are usually about the host system — power sequencing, EMC, cable routing — not about the module itself.
What we will not do
We do not quote a range figure that our own datasheet does not support, we do not publish a price we will not honour for a single unit, and we do not add a distributor layer between the factory and the buyer. If a quotation you received elsewhere is materially below the figures above for the same specification, the useful question is what condition that number was measured under — not who is cheaper.
Questions buyers ask before a wholesale order
Is there a minimum order quantity?
Single units are available for evaluation. Volume pricing starts where the order justifies its own test and documentation work — in practice, from the tens of units.
Do published prices include cables, housings or connectors?
The published figure is the module price. Cable assemblies, housings, connectors and acceptance documentation are quoted with the order because they change per project.
Can the price change after publication?
Prices are captured source values and can be revised as the catalog changes. A written quotation is what governs an order — the published figure tells you which band you are in before you ask.
Which model should I start with for a 500 m to 2 km application?
Start from the conditions, not the range: target reflectance, ambient light and visibility decide more than the headline number. The model selector shortlists candidates, and we will confirm the fit in writing.
Next step: send the application, the target and the operating conditions to tommy@erdimail.com — or use the quotation form. You will get a written answer within one business day (Chengdu, UTC+8).