Browse particle counters, great for use on ionizing and non-ionizing particles. Our particle counters allow you to measure the particles in the air to help achieve cleaner spaces. Manage indoor air quality effectively. Several of them include power adaptors and batteries. Our video particle counters store data that can be downloaded for analysis and reporting. They can also measure the temperature, dew point and other factors. Find laser counters, replacement pre-filter cartridges, filters and carbon monitor kits.