Biological Aerosol Detector

Tac-7C Detector

The Tac-7C® biological aerosol detector measures the biofluorescence and diffractive scattering produced by aerosol particles as they pass through an intense ultraviolet beam. It is used to monitor environmental particulates and classify them as being of either biological or non-biological origin, and to alarm if there is a sudden increase in the bio-aerosol level. It was developed by CBRN International for homeland security, public health and military applications.

Electric power consumption is less than 7 watts, allowing operation from either a small solar panel or for more than 24 hours on its swappable rechargeable battery. Multiple units may be monitored remotely using Windows-based software provided at no charge. The software can also be used to modify operating characteristics or alarm levels as needed or desired. All data is also automatically stored onboard on a removable solid state memory chip with a five-year capacity.

For purchasing information, please submit a request for quote. We will respond within two business days.

The Next Generation in Biodetection

  • Features
  • Applications
  • Specifications


Product Features

  • True UV-based “biological trigger”
  • Photon counting: no analog drift
  • Automated trigger/sampler protocols
  • 24+ hours operation on swappable battery
  • Wide operating temperature range
  • Light weight/small size
  • Long operating life
  • RS-232 or wireless communications capable



  • Indoor or outdoor use
  • Military bases
  • Sports stadiums and arenas
  • Subways and airports



Operating principle: Monitoring of 280nm UV-stimulated particle scattering and biofluorescence using photon counting electro-optics. Alarm decisions are based on algorithms that consider bioaerosol statistical behavior, bio-fluorescence intensity and particle size.
Particle size and type: 0.5 to 15 microns in four size ranges. Respirable aerosolized bacteria, spores, viruses, and toxins. Bio-fluorescence intensity in each size range is monitored and reported.
Interferents: Interferent resistant to burning diesel, silica dust, cement, burning vegetation.
Detection limit: 100 ACPLA in most natural environments, 20-30 ACPLA under laboratory test conditions.
Sampling rate: 1.2 liter per min of ambient air nominal.
Consumables: None.
Time to alarm: 15 second average, 30 seconds maximum. 15-minute signal history is used in alarm protocols.
Alarms: Built-in red LED and >100dB piezoacoustic alarm, plus serial link digital alarm output.
Communication: RS-232 or wireless Bluetooth®; pre-programmed for use with sampler.
Serial data output: Alarm, particles per liter of air in each size bin; percentage of particles that are biological; relative bio-fluorescence compared to scattering intensity for each size bin.
Operating time: Essentially unlimited if powered externally, or 24+ hours on UBI 2590 rechargeable battery.
Operating life: Air pump: 30,000 - 40,000 hours. UV light source: greater than 10,000 hours.
Operating temperature range: -40°C to 50°C. Operation at 60°C is permitted up to a total time of 1,000 hours.
Humidity: 0 to 95% non-condensing.
Power: Less than 6 watts at 18-36 VDC. Uses BA-5590 primary battery or UBI 2590 rechargeable battery. 110/220V / 50-60 Hz AC mains or 24V vehicle power can be used.
Start-up time: 1 minute.
Data storage: Onboard removable SD-type data card. Stores more than 5 years of aerosol data.
Size: 16 x 18 x 28 cm with no inlet air stack.
16 x 18 x 40 cm with inlet stack attached.
16 x 15 x 40 cm without side handle.
Package: EMI-resistant aluminum shell construction.
Weight: 3.5 kg without battery / 4.5 kg with battery.
Optional Accessories
Purchased separately
Rechargeable UBI 2590 battery, P/N 1000-0003-12
Battery charger, P/N 1000-0003-13
Tripod, P/N 1770-0009-02

CBRN International reserves the right to change specifications without prior notice.