9301 Remote Particle Counter

Features & Benefits

Measures 0.3 μm to 25 μm
0.1 CFM (2.83 LPM) flow rate
Long-life laser diode technology
Measures up to 6 channels of simultaneous data (30 channels optional)
Particle concentrations up to 15,000,000 Particles/ft3 @ 10% coincidence lossInternal critical orificeUser-selectable channel sizes
(Optional) temperature and relative humidity probe available
Stores up to 65,000 sample records for on-board data redundancy
Connect using Modbus RTU/ASCII over isolated RS-485
Versatile mounting options
Complies with ISO 21501-4 and JIS B9921 standards
Easy to clean and wipe down with minimal particle traps
Alarm light
LED Indicators


The Particles Plus 9301 Remote Particle Counter measures 0.3 μm to 25.0 μm with a flow rate of 0.1 CFM (2.83 LPM) and is the most advanced basic remote particle counter available. The 9301 remote particle counters report 6 particle size channel. The remote is designed to be installed on an external vacuum system with internal critical orifice controlled flow. Integration is easy into a building automation and cleanroom management system via standard MODBUS RS-485 communications.