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Digital Refractometer Updated for 2012 The VST Laboratory Grade Coffee Refractometer Improved Precision* & Accuracy Evaporative Cover & Ambient Light Shield Temperature Stability Function Stainless-Steel Sample Well Multiple Measurements Averaged Display Sapphire Optics Coffee and Espresso Scales Included 1024 Element Detector Array Smart Zero-Set Software 24-Character Backlit Display Optional Rugged Hard Case Five Languages Rubber Armor Jacket Compatible with ExtractMoJo™ & MoJoToGo™ for iPhone, iPad & iPod Touch VST LAB Coffee Unit of Measure: Range: Resolution: * Precision: Accuracy: Prism Material: Well Material: Detector: Temp Range: Sample Volume: Measuring Time: Power: Battery Life: Dimensions: Weight: Refractometer Models Coffee & Coffee Espresso Espresso % TDS % TDS % TDS 0.00 - 9.99 0.0-20.0 0.00 - 20.00 0.01% 0.1% 0.01% +/- 0.02% +/- 0.1% +/- 0.03% 0.00-4.99: +/- 0.05% +/- 0.05% +/- 0.1% 5.00-20.00: +/- 0.10% Sapphire Stainless Steel w/Cover 1024 Elements 15 to 40 ºC (59 to 104 ºF) 0.3 ml < 2 Sec (Typical) 2x AAA > 4,000 Readings Dependant on Backlight 145 x 75 x 37 mm 250 grams (8.8 Ounces) Comprehensive coffee tools for beverage equipment designers the professional barista and specialty roaster Made in USA www.mojotogo.us