The DD-1 Digital-Dairy Refractometer will directly read the percent solids in waste milk and can also measure colostrum quality using the Brix method. The MISCO Digital-Dairy refractometers are specifically designed to help professional dairy farmers and calf ranchers to rear healthy calves. They are rugged enough to withstand the demands of farm use, yet precise enough to give laboratory-quality readings. Nonsalable waste milk has been fed to calves for many years and represents a source of nutrition that is readily available, has few other uses, and is cheaper to feed than whole milk. However, solids content and bacteria levels are two problems associated with waste milk feeding. Since the DD-1 Digital-Dairy refractometer reads directly in solids content, it only takes a few drops of milk to quickly determine the percent solids and adjust them to desired levels with calf milk replacer. Another quick test for bacterial contamination and milk spoilage can be conducted using a pH meter, also available from MISCO. Only a couple drops of sample are necessary to fill the Digital-Dairys stainless-steel sample well. The sapphire measuring surface, the next hardest substance to diamond, will withstand years of wear and tear. A simple user-friendly interface consists of two buttons: one to take readings and the other to step through various menu options. A large 24-character back lit LCD display is easily read, even in dim light, while an evaporation cover helps prevent evaporation and keeps out stray light. Protection against inaccurate readings due to temperature differences, a major concern with refractometer measurements, is assured with nonlinear temperature compensation. Temperature compensation is automatic for fluids read between 10 and 40 C (+50 to 104 F). Digital-Dairy refractometers can be simply calibrated with water. INCLUDES: MISCO Palm Abbe Refractometer Instruction Manual Does NOT include the Refractometer, Protective Rubber Armor Jacket Brand New! Fresh from the Factory! The DD-1 Digital-Dairy Refractometer will directly read the percent solids in waste milk and can also measure colostrum quality using the Brix method The MISCO Digital-DairyTM refractometers are specifically designed to help professional dairy farmers and calf ranchers to rear healthy calves They are rugged enough to withstand the demands of farm use, yet precise enough to give laboratory-quality readings. Made in the USA, Cleveland to be exact! INCLUDES: MISCO Palm Abbe Instruction Manual International Shipping: Shipping will be via US Postal's Air Mail/Global Priority (3-8 business days) is $15.00 ($12.00 to Canada) . There can be Customs delays, and there aren't any Tracking Numbers. WE ARE NOT RESPONSIBLE FOR CUSTOMS DELAYS OR LOST PACKAGES! We get the packages to the shipper, they ship it to you. Don't worry! They do have wonderful service and assist in reducing your import taxes. Buy more items, for a total of 2 portable refractometers, and the shipping charge is still just $15.00 (world)/$12.00 (Canada) via the Air Mail/Global Priority! Of course, you'll have to win this auction to get the first item! Air Mail/Global Priority: World: $15.00 Canada: $12.00 For an additional $15.00 you can upgrade to USPS Express Mail (which takes 3-5 business days) and includes Shipping Insurance to $100.00, Delivery Confirmation and a Tracking Number. National Industrial Supply 30777 Rancho California #891420 Temecula, CA 92591, USA Sales: 951.308.9269 Fax: 310.833.7306 Email: nisupply@gmail.com We prefer Paypal! Pay me securely with any major credit card through PayPal!