Concept Flow Check

The Flow Check from Concept is the ideal instrument for monitoring small scale air currents / air movements and for testing the integrity of air-tight systems.  It creates a small cloud of safe smoke.  The resulting smoke comes out of the Flow Check smoothly and gently as to not to disturb any air movement. The Flow Check smoke machine is small, hand-held, battery powered & easy to use.

Technical Data Concept Flow Check
Size 30 x 20 x 70 cm (approx)
Weight 500 g (approx)
Battery (Ni-Cd) 7.2v ; 1.4Ah
Charging Current 700 mA
Smoke Time per Ampoule 3 minutes (approx)
Operating Time per Battery Charge 20 minutes (approx)

With the Flow Check, even the slightest air movements become visible.

The Flow Check produces a small wisp of smoke, making even the weakest of air currents visible. Commonly used to assist those in the manufacturing, HVAC, hospitals, laboratories & nuclear industries.

Flow Check is ideal for checking:

  • Ventilation or air conditioning systems
  • Chimneys
  • Smoke detectors
  • Detecting leaks in industrial equipment 
  • Fume cabinets / cupboards 

Each unit is supplied with: 

  • Flow Check smoke machine
  • Battery pack 
  • 2 x spare rollers tube 
  • 3 x smoke chemical ampoules 
  • Quality carry case (holds all the above and optional mains / car chargers)

The Flow Check air current tester produces clouds of smoke that are adapted to the specific weight of air. These harmless clouds of smoke float freely and are carried away by the slightest air currents.

The Flow Check creates smoke by drawing a specially formulated chemical, stored in ampoules, through a miniature peristaltic pump. The chemical is then heated above it's boiling point, vaporised, and then vapour condenses on reaching the colder atmospheric air to produce a highly visibly smoke with virtually no velocity.

The Flow Check can produce smoke on demand, from just a few seconds to continuous smoke production of around 3 minutes, on one ampoule.

Once charged, the Flow Check will hold sufficient charge to produce smoke for up to 20 minutes. (Recharge time 4 hours.)

Want more information, advice or prices? email us: 

Smoke Machine & Accessories

Concept Flow Check Smoke Machine (Kit)       

Product Code: CEL-FC-KIT (64-00761)

As described above.  The Flow Check (kit) comes complete with the smoke machine, battery pack, charger (with LED status indicator), pack of 3 smoke ampoules, 2 spare pump rollers and a professional carry case.

Mains Charger       

Product Code: CEL-FC-MCHARGER (64-00800)

The mains charger allows you to discharge and charge the Flow Check battery.  The charger has an LED status indicator.  Total charging time is approx. 3-6 hours.  The charger comes complete with interchangeable adapters (UK, EU & US).

In Car Charger      

Product Code: CEL-FC-CARCHARGER (64-00803)

If you are on the move, the in car charger will allow you to quickly top up your battery via the 12v lighter socket.  This is used in conjunction with the mains charger.

Spare Battery Pack       

Product Code: CEL-FC-SBATTERY (64-00817)

Spare battery (fits into the Flow Check handle).  Each battery will last approx. 20 minutes (continuous smoke).

Pack of Ampoules (3 off)       

Product Code: CEL-FC-AMPOULES (64-00812)

Pack of 3 Flow Check Smoke Ampoules.  Each Ampoule lasts approx. 3 minutes (continuous smoke).  The Ampoules are a special formula, you cannot use other fluids in the Flow Check.

Spare Rollers / Hose Assembly        

Product Code: CEL-FC-ROLLER (64-00818) 

After approx 20 hours of operating it is recommended a visual inspection on the Roller / Hose Assembly is carried out. New units can easily be swapped out.

Try the Concept Air Trace!

Demonstration movies

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Material Safety Data Sheet
Concept - Flow Check
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Confined Space Rescue Program Manager - North Tree Fire

ViCount use in Hot Fire Trainer

The machine has performed flawlessly up to this point and I purchased the machine from you at least six or seven years ago.

I have to confess I have never cleaned the orifice with the drill as you mentioned.

Actually, after the install, I have never worked on the machine again which, I am sure, is at least neglect on my part.

We originally had two smoke generators in the trainer, one fore and one aft.   The other machine (not Concepts) is quite a bit older
and it quit about two years ago but we found that the ViCount generated so much smoke we did not really need two machines.

The machine is protected from the heat of the trainer by a bulkhead with a port for the smoke to get through.

To give you an idea of the efficiency and quantity and the character of the smoke, the ceiling temperature inside the trainer as verified by two gauges reaches about 1300 degrees F. The smoke level inside the trainer is maintained quite adequately from the floor to about the
four and one half foot level but not much higher due to the temperature. We have found that it burns off at about 450 degrees F (230C).

Your smoke machine has trained hundreds of line Firefighters from all over the US including from major metropolitan Fire Departments such as Los Angeles County Fire, Pasadena Fire, San Jose Fire, Las Vegas Fire, Oakland Fire, Berkeley Fire, Sacramento Metro Fire, Cal Fire, and many federal agencies as well.

The training and experience those fire fighters receive in the intense heat and disorientingly smoky environment the ViCount helps create has without question saved lives and injuries as well as millions of dollars of property damage that may have occurred without the level of training
the ViCount helps provide.

Thank you for your help and support.

Best regards,

Mitch Ward CIHM
NorthTree Fire
Confined Space Rescue Program Manager