images provided for illustrative purposes only
Thompson for Dust Analysis
Eyepiece Reticle with Squares identified A, B and C and are sized 4mm, 7mm and 10mm. Horizontal Scale is 10mm subdivided into 100 divisions of 0.1mm (100µm).
G23
£153.77 - £181.31
Thank you for your quote request, we will be in touch shortly.
For counting particles in any of three areas of known size. The graticle is calibrated in the same manner as a normal eyepiece scale. The result is then used to calculate the area of any square.
Soda Lime 1.5mm thick
+0/-0.1mm
Correct reading through glass