Presidium Refractive Index Meter II

The Presidium Refractive Index Meter II is a desktop digital tester for the accurate measurement of broad-range R.I. values, from 1.000 to ~3.000                                                                                                                                                       Features: 

• Pinhole-sized light reflectivity measure on wide oval platform
• Cover cup with blackout interior to ensure light reflectivity measure is accurate
• Instantly displays direct R.I reading on digital index LED display panel
• In-built Refractive Chart for referencing diamonds and simulants above R.I reading of 1.8
• In-built 8-piece gemstone holder
• Pocket-sized Refractive Index Chart pull-out with R.I readings for 55 stones
• PRIM II complementary software to help users find out the possible colored gemstone using data on various gemstone properties
• Gemstone Dictionary in software with 57 gemstones’ properties (R.I, Color, Hardness, S.G. Value), country of origin and related information
• USB port for alternative power source and connectivity                                                                                                      Specification: 
  

  Power & Battery	1 x 9V alkaline battery (approximately 3 hours of continuous use) USB port to be used with appropriate Presidium Power Adaptor (not included)
  Recommended Operating Conditions	Optimal Operating Temperature: 18°C – 27°C (65°F – 80°F) Storage Temperature: 10°C – 51°C (50°F – 124°F)
  Dimension & Weight	Length: 140mm (5.50 inches) Width: 80mm (3.15 inches) Height: 33mm (1.30 inches) Weight (without batteries): 140grams (4.94 oz)