7301-AQM1 and 7301-AQM2 Remote
Air Quality and Environmental Monitor

Indoor Air Quality Monitors

Models 7301-AQM1 and
7301-AQM2 Air Quality Monitors

(PM, CO2, Temp, RH, and TVOC)

The Particles Plus® 7301-AQM1 and 7301-AQM2 Air Quality Monitors measure particles from 0.3 to 25.0 μm at a flow rate of 0.1 CFM (2.83 LPM). These user-friendly instruments display up to six particle size channels, temperature, relative humidity, and CO2 (AQM1) or CO2 + TVOC (AQM2).

Designed for research, industrial hygiene, indoor air quality, and cleanroom applications, the 7000 Series offers exceptional versatility. From the cleanest labs to the dirtiest worksites, confidently monitor any environment thanks to the industry’s highest particle concentration limits.

With 10 hours of continuous battery operation and up to 100 hours using our patented intelligent battery management system, these instruments are built for long-lasting performance on a single charge. The Particles Plus® Real-Time Monitoring technology enables dynamic particle investigations, displaying data in particles per second to help users quickly locate contamination sources in controlled environments.

Data can be managed directly on the device or through the free Particles Plus® software. Export raw data in .CSV format or generate compliant reports (ISO 14644-1, EU GMP Annex 1, or FS 209E). Remote diagnostics are also available from anywhere with an internet connection. The 7000 Series can function as a fully portable, battery-operated solution or be easily integrated into building automation.

Measures up to six particle size channels simultaneously
• Approximates mass concentration in μg/m³ with density and refractive index corrections
• User selectable PM sizes from 0.3 μm to 10 μm including TPM of up to 25 μm
• Long life laser diode technology for reliable performance
• Large, icon-driven color touchscreen display for easy operation
Includes temperature and relative humidity probe
• Stores up to 45,000 sample records, 1,000 locations, and 50 sampling recipes
• Annotation feature allows users to save 32-character notes with sample records
• Ethernet, USB, RS485, RS232, and wireless (802.11b/g) communication options
• Troubleshoot and diagnose issues remotely from anywhere with an internet connection
Generate and export reports for ISO 14644-1, EU GMP Annex 1, and FS 209E
• Built-in audible and visual alarms for real-time alerts
• Complies with ISO 21501-4 and JIS B9921 standards
Seamlessly integrates into facility monitoring and building automation systems
• Easy to clean, lightweight stainless steel enclosure with minimal particle traps
• 2 year Limited Warranty (Extended and Lifetime warranties available)
Models7301-AQM1 and 7301-AQM2
Size Range0.3 to 25 μm
Size ChannelsFactory calibrated at 0.3, 0.5, 1.0, 2.5, 5.0, 10.0 μm variable binning
Flow Rate / Accuracy2.83 LPM or 1.2 LPM / +/- 3%
Aerosol Concentration Range0.01 to 20,000 μg/m³
Light SourceLong life laser diode
Resolution.00003 μg/m3
Zero StabilityNo appreciable drift
Count ModesReal-Time Meter and graph, cumulative/differential count/m³ and count/ft³, and mass concentration (PM)
Log IntervalMinimum 1 second with no hold time, maximum 99 hours
CalibrationNIST traceable
Display4.3" (10.9 cm) WQVGA (480x272) color touch screen
Printer(Optional) External thermal printer available
Internal Vacuum PumpInternal pump with automatic flow control
Filtered ExhaustInternal HEPA filter
Number of Channels6
Custom Size ChannelsCalibration for custom size channels available
Audible AlarmAdjustable built-in alarm
Communication ModesEthernet, USB. (Optional) Wireless 802.11 b/g, RS485 or RS232.
Environmental Sensors 7301-AQM1Includes NDIR CO2 (0-5000 ppm, resolution 1 ppm, accuracy ±1% FS, Response rate 20 seconds), temperature and relative humidity probe 32º to 122ºF (0º to 50ºC) ±1ºF (0.5ºC), 15-90% ±2% RH
Environmental Sensors 7301-AQM2Includes all sensors in the 7301-AQM1 and TVOC PID (standard on the 7301-AQM2), 0-50 ppm / minimum detection level 5 ppb, accuracy ±1.5%, Response rate <3 seconds
AlarmAlarms on counts for all particle sizes, low battery, sensor failure, environmental sensors and flow
StandardsISO 21501-4 and JIS B9921
Instrument CalibrationRecommended minimum once per year. Gases, temperature and humidity sensors field calibratable.
External SurfaceStainless steel
Dimensions (L x W x H)5.22” x 3.81” x 9.42” (13.3 cm x 9.7 cm x 23.9 cm) includes barb fittings
Weight4 lb (1.8 kg)
AccessoriesOperating Manual and IMS Software on USB flash drive, isokinetic probe, temperature relative humidity sensor, purge filter, battery, USB cable, and power supply
Optional AccessoriesCalibration cap for gas sensor, carrying case, external printer, isokinetic probes, barb fittings, spare battery, external battery charger, printed manual, and IMS-RT monitoring system
Data Storage45,000 sample records (rotating buffer) includes particle count data, environmental data, locations, times and annotations, scrollable on screen or printout
Sample Time1 second to 99 hours
Power110 to 240 VAC 50/60 Hz universal in-line power supply
Operating Conditions41º to 104ºF (5º to 40ºC) / 20% to 95% non-condensing
Storage Conditions32º to 122ºF (0º to 50ºC) / Up to 98% non-condensing
Warranty2 year limited warranty. Extended warranties available.