OPTi Handheld Refractometer - (DEF/Ethylene Glycol °F/Sulphuric Acid) – Refractometer Shop
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This digital refractometer is great for car mechanics and fleet managers wishing to check the concentration of Diesel Exhaust Fluids (commonly known as DEF or AdBlue®) & measuring of °C Ethylene Glycol (°F Freezing Point), for automotive coolants such as Antifreeze, and Sulphuric Acid for testing battery acid.
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OPTi Handheld Refractometer - (DEF/Ethylene Glycol °F/Sulphuric Acid) – Refractometer Shop
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OPTI Handheld Digital Refractometer, Multi-function. - Klipspringer
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![](https://marvel-b1-cdn.bc0a.com/f00000000209071/www.bellinghamandstanley.com/image%20library/573c4670-3d10-4e23-84ae-b80d95cf3da3/content-images/features/bsl-opti2-500x281.jpg)
OPTi Digital Handheld Refractometer
![](https://m.media-amazon.com/images/I/6185-ZYCPKL._AC_UF1000,1000_QL80_.jpg)
SMARTSMITH Car Antifreeze Refractometer °F Dispay 4 in 1 Ethylene Glycol, Propylene Glycol in Antifreeze Liquids Freezing Point Temperature and Freezing Point Concentration, Automotive Battery Liquid: : Industrial & Scientific
![](https://marvel-b1-cdn.bc0a.com/f00000000209071/www.xylemanalytics.com/productimages/B4732388-8270-4A06-92BA-AB4400A213A9/images/BaS-38XX-OPTi2-hand_refrac-front_hand.jpg)
Digital Handheld Refractometer, OPTi, Bellingham + Stanley
![](https://www.camlab.co.uk/media/catalog/product/1/2/1232086-3.jpg)
OPTi Multiple Scale Digital Handheld Refractometer Camlab
![](https://m.media-amazon.com/images/I/51hDb7GLOxL._AC_UF350,350_QL80_.jpg)
Milwaukee Digital Ethylene Glycol Refractometer : Industrial & Scientific
![](https://refractometershop.com/cdn/shop/products/OPTi_antifreeze_530x_2x_daa5612a-34cc-4ac3-a938-4c1d0b15393b_530x@2x.jpg?v=1604591293)
OPTi Handheld Refractometer - (DEF/Ethylene Glycol °F/Sulphuric Acid) – Refractometer Shop