Automatic Temperature Compensation Refractometer with °F unit system</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>1.Equipped with scale measurement which provides direct reading，Easy to focus and calibrate.</li><li>2.Uses ambient light only which means battery or power source is not required.</li><li>3.Heavy-duty and lightweight with its aluminum construction.</li><li>4.Cushioned with soft & comfortable non-slip rubber.</li><li>5.Durable and built to last long.</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/41N%2BzupCnSL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41DzYUuZCRL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41%2BOTUKSNVL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41-tpqfvwDL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/411LeSsx67L.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/517hi6nGToL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/51kiRzMS-%2BL.jpg' noproxy></br>