Met One GT-521S 2-Channel Handheld Particle Counter
The GT-521S is a full-featured, battery-operated, portable laser particle counter that provides the
functionality of a bench unit with the convenience of a handheld. This powerful device supports
cumulative or differential counts, standard concentrations, total counts and count alarms. It can log
particle counts locally and continuously as well as send them to a network.
An aluminum enclosure provides protection from bumps and scrapes that can damage plastic
instruments. A rugged carrying case is also provided.
Our GT-521S allows the user to select particle sizes with two programmable count channels ranging
from 0.3 to 10 microns each show differential or cumulative particle counts in real time, with
selectable count units in .01 micron increments. The 521S features a simple and powerful menu-
driven command set. A simple touch of a button sets particle sizes, sample time, alarm settings, and
basic setup parameters such as date/time and communications settings. Remote operation via USB
(cable supplied) or RS-232/RS-485 (optional cable) allows extensive control, including all front-panel
operations. The GT-521S can store up to 8,000 sample events with outputs to printer, Excel or
networked datalogging via included software (Comet). Sample history can also be viewed on the
local display or download to a computer using the supplied Comet software.
The GT-521S is battery powered with 24 hours of typical (intermittent) operation or 10 hours of
continuous operation from a single charge. Recharge time is approximately 2.5 hours. The GT-521S
can also come with a temperature / relative humidity plug-and-play option, which immediately adds
ambient temperature and relative humidity capabilities to the displayed and logged data.
Applications:
- Controlled Environments
- Indoor Air Quality
- Process Control
- HVAC Applications
- Filter Testing
- Compliance Testing
- Emission Sourcing
- Remote Sampling
Part No
1) Met One Model GT-521S – Handheld Particle Counter
