This inexpensive and lightweight laser pen is useful for ray optics demonstrations and simple diffraction work. To help with this?you do not have to keep your finger on the button. Once pressed the?pen will stay on until the button in pressed?again.?In addition to this you can make your point on overhead images with this useful presentation tool.Caution: Laser Light. Do not stare into the beam or view directly with optical instruments. ( 712-004 )
Uniformity of Dosage Units
Allschoolabs
Uniformity of Dosage Units is a specialised analytical laboratory service that assesses whether individual dosage units contain sufficiently consis...



































