Supply Of Hydrometer, Grtd Scale, Density 1.1-1.2 G/ml Medium Size 50x0.002 Sub Division, Overall Length 250mm, Hydrometer, Grtd Scale, Density 1.2-1.3g/ml. Medium Size 50x0.002 Sub Division Overall Length 250 Mm , Thermometer Wet & Dry Bulb Minus 150c, T (EXPIRED)