Aeroqual Dust Sentry Pro

Real-Time Outdoor Ambient Dust and Particulate Monitoring

Designed for those who want maximum data from a single monitor, the Dust Sentry Pro provides continuous and simultaneous measurement of PM10, PM2.5, PM1, and TSP. This breadth of measurement is valuable in research and monitoring studies and industrial applications where more than one size fraction is of interest.
The Dust Sentry Pro comprises an optical particle counter that converts counts to a mass fraction via a proprietary algorithm stored in the system firmware. Measurements are logged and reported in real-time. The Dust Sentry Pro is configured to display and log particle mass by default. However, there is also an option to configure the instrument to record particle counts.
The particle counter uses scattered light to measure and count particles. Light from a laser diode is collimated to illuminate the aerosol sample flow. When a particle is present it scatters the incident laser light which is detected using a 60 degree solid angle elliptical mirror at right angles to the laser beam. The amount of scattered light is converted to a voltage pulse and the amplitude of the pulse is calibrated to a particle diameter. The particles are thus assigned on the basis of size to one of eight channels. An on-board temperature sensor corrects for thermal drift, and a sheath air filter keeps the optics clean even in harsh environments.
The instrument includes an embedded PC, with over 20 years of on board data storage, and two powerful software systems as standard. Aeroqual Connect is the instrument operating software. It opens in your browser so no software needs to be installed or updated. With Aeroqual Cloud you can remotely access data on any device even when your instrument is offline. There are also several options available including: wireless communications, SMS and email notifications and weather sensors. The instrument is packaged in a robust, lockable enclosure and is light enough for one person site installations. Solar shields prevent the enclosure from overheating in climates with high solar irradiance.
The Dust Sentry Pro is available from Air-Met Scientific for sale and rental with solar options. 
Contact your local Air-Met office for more information.
For more information on the Aeroqual Dust Sentry Pro, contact your local Air-Met office. 

Aeroqual Dust Sentry Pro Features Include:

  • Simultaneous measurement of PM10, PM2.5, PM1, AND TSP.
  • Measures and reports data in 1 minute intervals
  • Respond in real-time with email and SMS alerts
  • Compact and light enough to be carried by one person
  • Quick and easy to install and relocate
  • Flexible integration of meteorological and noise sensors
  • Huge on-board data storage capacity for long term fail safe monitoring
  • Retrieve data remotely via direct internet connection or cloud-based interface
  • Remotely configure and diagnose instrument via online user interface
  • Optional Email / SMS alerts and FTP data export available
  • Robust, lockable enclosure with solar shields

Aeroqual Dust Sentry Pro Specifications Include:

Control System
Embedded fanless PC, Intel Atom N2600, 1.6GHz, 2GB RAM, 32GB SSD, Ubuntu Linux
Communications Standard: WIFI, Ethernet (LAN) Optional: Cellular IP GPRS modem
Connect: Runs on embedded PC, accessed via web browser ( IE, Firefox, Chrome, Safari) Cloud: Runs on secure ‘cloud’ servers, accessed via web browser
Connect / Cloud Features: configuration, diagnostics, journal, calibration and data acquisition, plus SMS and email alerts (optional), and auto data export via FTP and email (optional)
Data logging 32GB Hard Drive (>20 years data storage)
Averaging period 1 min, 5 min, 10 min, 15 min, 30 min, 1 hr, 2hr, 4 hr, 8 hr, 12 hr, 24 hr
Outputs RS232 (legacy mode)
2 x Relay (optional)
4 x 4-20mA (optional)
Power requirements
100-260VAC (standard): 15W / 24W* Regulated 12VDC (if required): 15W / 24W*
Lockable IP65 GRP cabinet with integrated aluminium solar shield armour
Inlet: 36cm heated inlet
Dimensions 483H x 330W x 187D mm (including solar shield armour & mounting brackets)
Weight <13 kg*
Environmental Operating Range -10°C to +50°C
Mounting Pole, tripod and wall mounting brackets included
47mm Sample Filter (Optional) 47mm filter for particle loading analysis
Factory Integrated & Tested Sensors (Optional)
Gill WindSonic (ultrasonic wind sensor) Vaisala WXT520 (weather transmitter) Met One MSO (weather transmitter) Cirrus MK427 Class 1 (noise sensor) Novalynx Pyranometer (solar radiation)

Aeroqual Dust Sentry Pro Applications Include:

  • Air Quality Research
  • Short Term Surveys
  • Source Apportionment
  • Roadside Monitoring