Precision optical refractometer with dual scale for Brix and specific scale (specific gravity). Designed for fast, dependable concentration checks without batteries or external power. Key benefits Accurate readouts across a wide working range: 0 to 40% Brix with 0.1% scale division for fine resolution and repeatable measurements. Dual-scale viewing: Brix scale and specific scale in one instrument—eliminates the need for separate devices and speeds decision making. Durable construction: robust aluminium housing protects optics and withstands regular field or production use. No power or calibration equipment required: uses ambient light only, so it’s ready wherever you need it. What it does and why you need it Measures soluble solids and relative density quickly and reliably, helping you control product quality, determine harvest timing, or verify ingredient concentration. The 0–40% Brix range covers most fruits, juices, syrups, and beverage applications; 0.1% divisions give the granularity required for process control and quality checks. Metal housing increases longevity and reduces maintenance compared with plastic-bodied alternatives. Compatibility and performance Function: optical refractometer with dual Brix and specific scale readout. Material: durable aluminium housing for everyday use in production, lab, or field environments. Power: no batteries—operates with ambient light, simplifying use in remote or mobile situations. Performance: full-range 0–40% Brix with 0.1% scale divisions for precise, repeatable readings. Typical applications Winemaking and brewing: monitor sugar levels during grape harvest and fermentation to track potential alcohol and fermentation progress. Fruit and juice quality control: verify ripeness and soluble solids in apples, grapes, citrus, and pressed juices. Food and syrup production: check concentration of syrups, concentrates, and sweeteners to maintain consistent product formulation. Reliable, simple, and built for regular use—this refractometer provides the essential measurements needed to make fast, informed quality and processing decisions.