The Propylene Glycol Refractometer is a rugged, portable, water-resistant device that utilizes the measurement of the refractive index to determine the percent volume and freezing point of propylene glycol based solutions.

Features:

• 0 to 100% Volume range with ±0.3% accuracy 
• 0 to -50°C freezinf point range with ±0.5°C accuracy
• Dual-level LCD displays measurements and temperature readings simultaneously
• Automatic Temperature Compensation
• Easy Measurement: Place a few drops of the sample in the well and press the READ key
• Alerts the user of low battery power that could adversley affect readings
• IP65 water protection: built to perform under harsh laboratory and field conditions
• Readings are displayed in approximately 1.5 seconds
• Calibrate with distilled or deionized water
• Sample size can be as small as 2 metric drops
• Automatic shut-off after three minutes of non-use
• Stainless steel sample well resists corrosion from salt water
• ABS thermoplastic casing

Specifications:

• Temperature Compensation: automatic between 0 and 40°C (32 to 104°F)
• Measurement Time: approximately 1.5 seconds
• Minimum Sample Volume: 100 µL (to cover prism totally)
• Light Source: Yellow LED
• Sample Cell: stainless steel ring and flint glass prism
• Auto-Off: after three minutes of non-use
• Enclosure Rating: IP65
• Battery Type/Battery Life: 9V/ approximately 5000 readings
• Dimensions/ Weight: 192 x 102 x 67 mm (7.6 x 4.01 x 2.6")/ 420 g (14.8 oz)