Stevenson Reeves Triple Scale Hydrometer for both wine and beer.
This hydrometer is 230mm long and has three scales:
__ Specific Gravity 0.980_1.120 at 20 _C,
__ sugar scale 0_270 grams per litre,
__ potential alcohol scale 5_17% for wines.
Coloured bands indicate where to start and finish wines and beers, and there is an indication for sweet/medium/dry finished wines.
The hydrometer comes packed in a strong clear plastic tube along with an instruction leaflet.