National scientific apparatus works are engaged in offering double demonstration eye piece .this instrument is equipped with high quality optical components. It ensures perfect vision to both the observer and sub-observer. It's conveniently located...
We offer double demonstration eye piece. Double demonstration eye piece : this demonstration eye piece fits any standard 23 mm dia. Eye piece, making it possible for two persons to see the same object at the same time. Fitted with a pointer....
It Ensures Perfect Vision To The Teacher And The Student. A Pointer Covers The Entire Field. Being Visible To Both The Viewers, Enables Easier Demonstration. Supplied In Nicely Made Case....
Double Demonstration Eye Piece : This demonstration Eye piece fits any standard 23 mm dia. eye piece, making it possible for two persons to see the same object at the same time. Fitted with a pointer. Magnification : 10x....
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