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Review Blue filter pen tester

Blue filter pen tester

(€--,-- Incl. tax)
This is a small and portable Aptica Blue Filter Pen tester. Not only a good guide for traveling or pointing out the faraway target but especially an exquisite tool for testing the quality of Blue Blocking lenses.
You`ll be surprised with that many blocking of blue light by our special Blue Filter lenses of Aptica. Excl. 2 AAA batteries. 
technical specifications


color : blue laser pointer pen 
expected life : 5000 hours with 2 AAA batteries 
wavelength : 405 nm 
laser output : 5 mW
weight : 20 g ( batt not incl. )