Lighthouse LS-20 Liquid Samplers have an integrated syringe sampler and optical particle counting system. Its easy-to-use Windows-based software interface is designed to meet the international regulatory EP and JP, as well as USP 788 requirements. Following a quality standard of reliability and dependability, Lighthouse Worldwide Solutions developed the LS-20 Liquid Sampler using the latest in laser optical particle counter technology. The LS-20 uses a high accuracy syringe pump flow control system and a high sample volume sensor. With sample volumes adjustable from 1 to 1000 milliliters (10 mL syringe), it is a perfect tool for multiple batch sampling applications.

The graphical user interface makes the LS-20 easy to configure and operate. Data is automatically recorded from up to eight particle size channels ranging from 1.0 to 50.0 or 1.0 to 200 microns and is easily available in graph and tabular form in real-time. All reports can be preconfigured and printed at the touch of a button.

Cleanroom Technology: Liquid Sampler LS-20
Cleanroom Technology magazine dedicates one issue annually to liquid particle counters.
For this August 2018 edition, they chose to feature the Lighthouse LS-20 Batch Sampler.
Click here to review the article.


1.0 µm to 50 µm or 1.0 µm to 200 µm size range
Integrated “light obscuration” particle counter software designed for 21 CFR part 11
International regulatory EP, JP reports
USP 788 reports
Sample volumes from 1 to 1000 ml
Preconfigured USP 788 recipes
Precise syringe pump flow control
Stainless steel enclosure
Built-in magnetic stirrer
Automated sample handling maximizes repeatability
Compact footprint



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