Pocket Digital Refractometer - Honey poree A slatted rack is a

A slatted rack is a thin framed insert that sits between the bottom board and the brood chamber

or want fancier finishes than the standard cap

Posca Queen Bee Marking Pen — refresh or re-mark a queen by year color

Because the whole panel is open

How often should I apply it

Pocket Digital Refractometer - Honey poree A slatted rack is aThe digital honey refractometer takes the guesswork out of reading your honey drop in a sample as small as 1 ml and read moisture, Baum and Brix straight off the LCD. No squinting through an eyepiece, and no holding it up to the light. Features Reads honey on three scales Baum (Be), water content and Brix Digital LCD readout no optical eyepiece to interpret One button calibration to distilled water Automatic temperature compensation and auto shutoff