Digital Hand-held "Pocket" Propylene glycol / Freezing point of Propylene glycol (°F) Refractometer PAL-89S

>about the icons Model PAL-89S Cat.No. 4489 Measurement Range Concentration of Propylene Glycol : 0.0 to 90.0% (V/V) Freezing point of Propylene Glycol : 32 to -60°F Resolution Concentration of Propylene Glycol : 0.2% (V/V) Freezing point of Propylene Glycol : 1°F Measurement Accuracy Concentration of Propylene Glycol : ±0.4% (V/V) Concentration of Propylene Glycol : ±1°F Ambient Temperature 50 to 104°F Measurement Time 3 seconds Power Supply 2 × AAA Batteries International Protection Class IP65 Dust-tight and Protected against water jets. Dimensions & Weight 55(W) ×31(D)×109(H)mm, 100g Optional • PAL-CASE : RE-39409 • STRAP: RE-39410 Patent for Design Registration No. ZL200310103015.2 (China) Patent for Invention Registration No. ZL03303431.1 (China), 089244 (Taiwan) Registration pending in U.S.A., and Germany and all other countries around the world.