LED Optical Refractometer Daylight Plate with LED

With build-in bright LED light. Allows you make test in dark or twilight environment. When turn on the light, you can see the test result very clearly.
Support replace battery. The battery can be replaced after the battery is exhausted.
Convenient to use. You only need to press the LED cover plate button one time, the LED light will turn on and keep bright. You don’t need to keep pressing the button when use the refractometer. When you press the LED cover plate button again, the LED light will turn off.
Compatible with different kinds of refractometers. Our refractometer LED plate can suit for most of species refractometers on the market. Whether you use our refractometer or not, you just only need to change the cover plate. Package list:

1 x LED cover plate
1 x Pin remover
1 x Manual
1 x Original box
1 x CR1220 battery