The 0.000-3.000 Abs linear range with CV<1.0% repeatability is what we actually test for on every unit before it ships—we run a full 96-well plate with known standdard, and anything outside that gets flagged before packing.

We do batch-level testing on optical channels, not just one-off calibration, because what it does is catch drift between the 8 vertical channels that can mess with your results if you're running high-throughput assays for multiple clients.


You'll get a COA with each unit showing teh actual measured stability at ±0.003 Abs, and we usually keep 2-3 units in stock for retest requests—just send back the old one within 30 days or so if you're not satisfied, though we've only had that happen twice in two years.

The 405, 450, 492, and 630 nm filters come pre-installed, but our company can swap in up to 10 optional ones (like 540 or 620 nm) if you tell us your typical assay panel—most buyers go with the 450nm for HRP-based kits anyway.

MOQ is 1 unit for wholsale pricing, and we pack it in a double-walled box with foam inserts (gross weight is 13 kg, so it's not a small package), but confirm lead time because we sometimes run out of the Spanish-language firmware version.
You can swap filters. The unit ships with 405, 450, 492, and 630 nm installed, but it supports up to 10 filter positions total, so you can order additional wavelengths and change them out as needed.
Our standard MOQ is 5 units per order. If you need mixed filter sets across units, we can do that — just let your sales rep know the breakdown when you place the order.
Yes, every BK-EL10C comes with a factory calibration certificate and a quality inspection report. We can also provide CE and ISO certificates upon request.
Absolutely — it works on both 110V and 220V, 50 or 60 Hz. Lead time is typically 15-20 working days after order confirmation, depending on current stock.
We use double-layer foam padding inside a reinforced carton, then a wooden crate for extra protection. Store it between 10°C and 40°C, with humidity under 80% non-condensing.