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Re-use the meter portion indefinitely with this replaceable ph electrode
With self-deflation and comfortable automatic self-inflation
Adapter Interface: Uses interchangeable
Net Weight: 75g
food transportation facilities
GS-PS1 Desktop Standing Polariscope Built-in LED Rotatable Platform 2 Glass Filter Voltage:220V Re-use the meter portion indefinitelyThis Standing desktop Polariscope is very useful in identifying moissanite, detecting strain diamonds and other gems and separating synthetic amethyst from genuine. No replacing of fuse or changing of bulb is needed. The GS PS1 polariscope is an instrument specially designed for analyzing and viewing if a gemstone is doubly (anisotropic) or singly (isotropic) refractive. A stone is placed between two polarizing filters and the top filter is then
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