
Count On Us™
Particles Plus offers a line of advanced-technology particle counters, air quality monitors, and environmental sensors. As the most vertically integrated particle counter manufacturer and technology licensing company in the industry, Particles Plus engineers and manufactures its own counter, display, battery, vacuum pump, and sensor technology from the ground up. Added intelligence in each module results in products with superior performance, extended features, accuracy, quality, reliability and value.

The most accurate sensor and particle counting technology on Earth


Made in USA
100% of Particles Plus® products are designed and assembled in the USA, while 89.2% of the parts are built by 35 different suppliers located in the USA and Canada.
Latest News
Particles Plus New Firmware and IoT
Stoughton, MA – August 18, 2017 – Particles Plus released their new instrumentation firmware that will be available to all existing customers, and included in all new instruments produced and shipped after August 18th. This firmware update provides for many...
Particles Plus New Large Particle Sensors
Stoughton, MA – July 8, 2017 – Particles Plus announced the launch of their new model 8506-20 and 8506-30 particle counters, specifically designed to count large particles. The new instruments were designed with applications in the automotive manufacturing industry...
Particles Plus Exhibits at AIHce2017
Seattle, WA – June 7, 2017 – Particles Plus exhibited at the 2017 American Industrial Hygiene Conference and Exposition, from June 5th through the 7th at the Seattle Convention Center. The company was there to educate and support the AIHA members with demonstrations...