Description

Any type of refractometer can be made into LED refractometer

Easy to focus and calibrate;

The built-in bright LED lights enables testing in any environment, including twilight and night or other dark environment.

L: 205 MM X W: 75 MM X H: 54 MM.

Instructions for Use:

Open the LED plate and clean the instrument using a soft, damp cloth.

Place 2-3 drops of sample water on to the main prism.

Turn on LED, adjusting the focus to suit.

Take the reading where the boundary line of blue and white cross the graduated scale.