ActiveCount100 ActiveCount100H ActiveCount25H


Flow Rate 100 liters/minute ± 4% 25 liters/minute ± 5%
Autoclavable Impactor Head Aluminum with 300 holes, 19m/sec
(316L Stainless Steel available)
316L Stainless Steel with 300 holes,
316L Stainless Steel with 88 holes,
Autoclavable Dust Cover Aluminum (316L Stainless Steel available) 316L Stainless Steel
Baseplate Non-removable Removable, magnetic, autoclavable
Exhaust Non-filtered HEPA filtered, captures 99.97% of particles at 0.3 μm
Battery 6 hrs. continuous, 8 hrs. normal sampling,
Li-ion rechargeable, 4 hrs. charge time
8 Hrs. continuous, 10 Hrs. normal sampling,
Li-ion rechargeable, 4 Hrs. charge time
Weight 5.80 lbs (AL), 6.75 lbs (SS) 6.75 lbs
Petri dish compatibility Compatible with standard 90 mm petri dish (85mm-92mm), includes adjustment tool
Sample volume presets 8 programmable volume presets
User names 50 programmable user names
Location names 400 programmable location names
Display 3.5 inch (8.9 cm) color touch screen
LED light RGB LED light for status, alerts and alarms
Speaker Adjustable speaker volume
Time/Date formats Time format 12 or 24 hours, Date formats YYYY/MM/DD, MM/DD/YYYY, DD/MM/YYYY
USB port USB 2.0 port (8 GB flash drive included)
Data records Unlimited; saved on USB flash drive in .csv file format
Log file data fields Start date, time, location, user, sample duration, flow duration, volume, cycles, status
Handle - monopod mountable Monopod mountable handle 3/8-16, includes 1/4-20 threaded adapter
Enclosure 316L Stainless Steel
Power 24 VDC power adapter (100-240V ~ 1.5A 50-60Hz)
Calibration Annual
Operating environment 0-90% humidity non condensing, 0-40°C sampling, 0-35°C charging
Dimensions 7.6”(h) x 4.7“(w) x 4.7”(d) [ 19.4 (h) x 12.0 (w) x 12.0 (d) cm]
Carry case Seahorse case with Lighthouse Worldwide Solutions logo


  ActiveCount Unit, sample head, dust cover, baseplate, blower inlet seal (HEPA units only), petri dish adjustment tool,
1/4-20 threaded monopod adapter, 24 VDC power adapter with cord, Operators Manual on 16 GB USB flash drive, calibration certificate, carry case.


  Remote sampling adapter with ISO probe, compressed gas sampler, tubing, cleanroom monopod, IQ/OQ protocols.


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ActiveCount25H Air Sampler handle down

Microbial Sampler with Hepa Filtered Exhaust

ActiveCount25H is a high performance portable active air sampler suitable for use in cleanrooms and aseptic environments. The ActiveCount25H is truly ISO 14698 compliant with a d50 collection efficiency of 1 micron and HEPA filtered exhaust port designed to avoid re-aspiration of sampled air.

ActiveCount25H offers self-adjusting flow control to ensure accurate sampling as well as continuous & periodic sampling modes for optimum sampling flexibility. The autoclavable impactor head, dust cover and removable magnetic baseplate2 together with a sanatizable stainless steel enclosure and HEPA filtered exhaust, ensure ActiveCount25H will not contaminate your critical environments.

The optional remote sample head minimizes disturbance of unidirectional airflow within a BSC or laminar flow bench and the gas sample option provides the versatility needed to accomplish all your critical sampling requirements.

ActiveCount25H: The next evolution of the award winning ActiveCount100H
ActiveCount125H Features


Key Features:

  • Sample rate: 25 liters per minute
  • 3.5 inch (8.9 cm) color touch screen
  • ISO 14698-1 compliant
  • HEPA filtered exhaust
  • 8 programmable sampling volumes
  • 50 programmable user names
  • 400 programmable location names
  • Flow rate alarming
  • Altitude Compensated
  • Data logging to USB flash drive
  • Password security for sample settings
  • Autoclavable sampling head and dust cover
  • Removable baseplate2, magnetic and autoclavable
  • 100-240VAC adapter and internal battery 10 hours normal1 use
  • Continuous, Periodic and Gas sampling modes
  • Wipedownable and suitable for sterile conditions

1 Normal Use is defined as sampling 10 minutes, pausing 5 minutes and repeating.
2 Patent Pending

Type Part # Title Paper Size File Size Download
Datasheet 191010 ActiveCount100H, ActiveCount25H Letter 553.7 KB DOWNLOAD


Quick How To: ActiveCount100H Home Screen Orientation
Quick How To: ActiveCount100H Gas Sampling
Quick How To: ActiveCount100H Setting Up a Password
Quick How To: ActiveCount100H Periodic Sampling
Quick How To: ActiveCount100H Constant Sampling
ActiveCount100H Tutorial Series | Main Screen Overview, Records, Users & Locations
ActiveCount100H Tutorial Series | General Instrument Settings
ActiveCount100H Tutorial Series | Sampling Modes & Parameters
ActiveCount100H Tutorial Series | Gas Sampling
Quick How To: ActiveCount100H Assigning Locations & Users
Quick How To: ActiveCount100H Exporting Data
Quick How To: ActiveCount100H Mounting Petri Dish