Home / Products / Nanometer Liquid Counters Nanometer Liquid Counters Our Lighthouse range of Nanocount liquid particle counters are some of the most cost effective and yet technically advanced liquid particle counting instruments on the market. Lighthouse NanoCount 25+ Liquid Particle Counter Lighthouse NanoCount 30+ Liquid Particle Counter Lighthouse NanoCount 50+ Liquid Particle Counter Lighthouse NanoCount 65+ Liquid Particle Counter