For the treatment of sample film prior to adhesion or printing. The film to be tested is placed on the earthed base plate and is then passed over with the manual roller electrode. Manufacturers of adhesives or printing ink are able to provide their customers with information regarding film characteristics, and can demonstrate the advantages of their adhesive or their printing ink in conjunction with corona treatment. The generator power can be set and is displayed. The intensity can also be regulated by varying the movement speed. The unit is most suitable for quick and simple tests. The compact design of the unit allows it to be taken to a customer and to perform tests on site. Laboratory-type corona devices with positioning table, adjustable parameters and different electrode designs can also be provided. Please ask for further information.