This is a automatic temperature compensating (ATC) model with both a Brix (0-32%) and Specific Gravity (1.000-1.120) scale. It comes with a zippered storage bag, refractometer, sampling pippette, and recalibration screw driver.
Refractometers are traditionally touted as a tool for all grain brewers since they can be used to quickly monitor the gravity of a fly sparge runoff to prevent from oversparging. However, just about all brewing styles can benefit. Collect a tiny drop of wort, juice, must, etc and drop it on the window to instantly find the gravity without filling a sample tube with 3 ounces. Note: refractometers are accurate in pure sugary liquids but require correction algorithms/calculators to test gravity in liquids containing alcohol.Note that the current stock has a blue rubber handgrip and eyepiece whereas the pictures show them in black. There is no functional difference.
If you want to have some extra pipettes for pulling samples, we're offering a 5-pack for $2. They are 3ml total volume, which is larger than the ones that come with the refractometer.