Check the listing for details. Met One GT-521 Hand Held Particle Counter. Condition: Used. Listed at 1500.00 USD. This Met One GT-521 Hand Held Particle Counter is a reliable tool for measuring the amount of particles in the air. Made in the United States, it is designed for use in biological laboratories and healthcare facilities. With its compact size and easy-to-use interface, it is a convenient addition to any lab equipment collection. Whether you're looking to maintain a clean environment or conducting research, the Met One GT-521 is an essential tool for accurate particle counting. Its brand name is synonymous with quality and precision, making it a trusted choice for professionals in the industry. This item is listed under the categories of Centrifuges, Medical & Lab Equipment, Devices, Healthcare, Lab & Dental, and Business & Industrial. Includes two battery chargers.