Flow Check Air Flow Indicator from Draeger Safety

The Flow Check Air Flow Indicator can detect the slightest air movements. It produces a harmless cloud of smoke that floats freely and easily. With the Flow Check Air Flow Indicator, the slightest air movements become visible. The Flow Check is ideal for checking ventilation or air conditioning systems, chimneys or to detect leaks in industrial equipment. Also, when it comes to the detection of contaminants in work areas, knowledge about air movements is quite useful in order to find out the best locations for measurement of contaminant concentrations.

The Flow Check consists of an instrument for the production of the clouds and an ampule containing smoke generating fluid. The ampule contains a fluid that is a special mixture of alcohols developed at Draeger. A small heating element in the head of the instrument heats the fluid which condenses on contact with the ambient air. The temperature of the heating element and the quantity of the fluid is electrically balanced.

Small, single clouds can be generated with a short press of a button. If a continuous production of clouds is desired, the button can be held or locked in the “on” position. The fluid is located in a compartment in the handle of the instrument and can be inserted effortlessly into position. The amount of fluid contained in the ampule is enough to generate approximately three minutes. Power is supplied by a battery located in the handle of the instrument.


Smoke Time per Ampule about 3 minutes
Operating Time per Battery Charge about 20 minutes
Temperature 5 to 40ºC
Dimensions 300mm x 200 mm x 70 mm
Weight 500 g

Ordering Information

Each unit includes 3 smoke ampules, battery pack, hose inlets and a carrying case. A battery charger is required. For pricing, please call AFC International at 1-800-952-3293, 219-987-6825 or fax 219-987-6826 or email sales@afcintl.com

Catalog No.
Flow Check Air Flow Indicator
Charger, 100 VAC, required
Smoke Ampules, pk/3
Battery Pack 6400817
Hose Inlet 6400818


Flow Check Air Flow Indicator Datasheet

Product Enquiry