Air samplers:
JL-10-24 Lilliput, 10 m³/h
- battery operated
Dwarf 100x9, 130 m³/h
- portable
JL-150 Hunter, 150 m³/h
- stationary use
JL-400 Watchman, 400 m³/h
- vertical particle filter
JL-500 Cinderella.G2, 500 m³/h
- automated systems
JL-900 Snow White, 900 m³/h
- early warning systems
Goblin200, 200 m³/h
- arctic radiation monitoring

Fallout samplers:
Ritva300, 1x ⌀300 mm
- cold environments
Pirkko800, 2x ⌀800 mm
- dry and wet precipitation

Special products:
- air flow volume meter
- station software

Contact information:


 Heavy Weather Air Sampler

 JL-400 Watchman


   JL-400 Watchman is a medium volume air sampler with a flow rate of 400 m³/h. It is designed for continuous sampling both indoors and outdoors. Features a vertically aligned filter cassette to avoid heavier particles like sand from filling it. Equipped with a calibrated activated carbon line to enable sampling from gaseous substances.

 Technical data

 Dimensions l x h x w  1070 x 1600 x 1070 mm 
 Weight  ~250 kg 
 Material  Stainless steel 
 Anodized aluminum 
 Pump  Gas Ring Vacuum 
 Power  4 kW 
 Voltage  3-phase 400 VAC / 50 Hz 
 Filter flow max.  400 m³/h 
 Particle filter size  450 x 450 mm 
 Particle filter types  Whatman GF/A 
 Camfil A500G 
 Machery-Nagel-MN 85/90 
 Petrianov FPP-15-1.5 
 3M E666,BMF20,W/1,1.6OZ PP 
 Display unit values  Pressure difference, Pascal 
 Current airflow, m³/h 
 Total volume, m³ 
 Total time, hh:mm:ss 
 Data storage  Total volume and time over one sampling