The Setra Systems 3301P & 3501P Series Particle Counter measures 0.3 μm to 25.0 μm through a long-life laser diode and a flow rate of 0.1 CFM (2.83 LPM) with internal vacuum pump and manifold that do not require external vacuum source.

Easy to configure and with user configurable alarm light, this stainless-steel particle counter monitors 4 user-selectable size channels to allow for continuous monitoring of particulates in your critical environment.

The 3301P and 3501P particle counters provide a range of particle size measurement from 0.3 or 0.5 to 25.0 μm at a flow rate of 0.1 CFM (2.83 LPM). These sensors allow for efficient particle counting with specifications that exceed the ISO 21501-4 and JIS B9921 calibration standards.

These sensors have 4 fixed particle size channels and are equipped with an internal pump and manifold and do not require an external vacuum source. Integration into a building automation or facility monitoring system is easy via isolated RS-485 Modbus communication.