MISCO DIGITAL PALM ABBE PA-201X-193 Refractometers have been proven time and time again to be more accurate than hydrometers or reagent test strips for testing urine specific gravity. The Palm Abbe is fast, convenient, and easy to use. Simply place a drop or two of urine in the stainless-steel sample well, press a button, and instantly read urine specific gravity on the large LCD display. Brand New! Ships from USA ASAP! MISCO OPTICAL-ENGINE Technology: Sapphire Optics, High Definition 1,024 Element Detector Array Stainless Steel Sample Well, Protective Evaporation Cover, Large 24-Character LCD, Display Backlight Easy to use: one button to take readings, one button to cycle through menu options Automatically calibrates itself to water; Automatic Temperature Compensation (ATC) Wrestling Refractometer Scale: Scale Fluid: Urine - Human; Unit of Measure: Specific Gravity (D20/20); Range: 1.000 to 1.0450; Resolution: 0.0001; Precision: +/-0.0005 Additional Details ------------------------------ Temperature Range 0 to 50 C (32 to 122 F) Power Source 2 AAA Batteries Battery Life 5000+ Readings Dimensions 145 x 75 x 37 mm (5.7 x 2.95 x 1.46 in.) Weight 250 grams (8.8 Oz.) National Industrial Supply 30777 Rancho California #891420 Temecula, CA 92589, USA Sales: 310.748.6858 - nisupply@gmail.com Number of items: 1