Optical Refractometer
- Alloy boxes refractometer
- Brix Refractometer
- Salinity Refractometer
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- Honey Refractometer
- Wine&Alcohol refractometer
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- LED Optical Refractometer
- Optical Refractometer Parts
LED Optical Refractometer
- LED Brix Refractometer
- LED Salinity Refractometer
- LED Brix&Salinity Refractometer
- LED Honey Refractometer
- LED Wine&Alcohol refractometer
- LED Oe refractometer
- LED Beer Refractometer
- LED Clinical Refractometer
- LED Oil Testing Refractometer
- LED Antifreeze/Battery/ Cleaning Fluids Refractometer
- LED Milk Refractometer
- LED Refractometer Parts
Digital Refractometer
Abbe Refractometer
Gem Refractometer
PH Tester
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Home Brew Beer&Wine products
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Description
A simple way to catch and mark your queens safely without damaging her in your fingers.
Can be used with one hand. Simply place the opening over the queen on the comb and slide down the closer. Gently push the plunger up to the grill to secure her firmly without squashing her and mark her through the grill. Allow a few seconds to dry before releasing her back into the colony.
