Check the listing for details. Urea and DEF Tester - Refractometer Digital Tester That Measures Accurately a.... Condition: New. Listed at 179.43 USD. Brand New Urea and DEF Tester - Refractometer Digital Tester That Measures Accurately and Quickly - The Best Choice for Your Diesel Vehicle - Limited Time Offer Manufacturer model: Urea-6S ACCURACY AND CONSISTENCY: Refractive index is effected by temperature, so we set Automatic Temperature Compensation (ATC) function for BRIX reading be accurate at various temperatures.BIG COLOR SCREEN WITH BACKLIT: Unit with a big backlight screen makes you easy to see the readings clearly in poor light.EASY AND INSTANTLY: Just turn urea meter on and drip several drops of solution in the metal sample groove, press READ button and wait for 3 seconds to get result. Very easy to operate.MULTIPURPOSE TESTER: Tester for vehicle urea solution anytime. Unit has refractive index, urea concentration index and temperature functions 3 in 1 so can be use for various purposes as vehicle use, agricultural use or laboratory experiment, etc.ENERGY CONSERVATION: Our product will deliver with 2 batteries. When you finished your test but forget power it off, unit will shut down automaticly in 60 seconds without any operation. Thus this function will save energy. Description Shipping and Handling Please allow 5-7 business days for the package to arrive, regardless of buyer location within the US. We will provide an online tracking number to you once the item has been shipped. It may take a few business days for our automated system to process the tracking number onto eBay. However, this will not affect the shipping times. Return Policy All our products are brand new and sealed. All items qualify for returns within 30 days of receipt. Feedback We take our reputation seriously. If you have any questions or concerns, please contact us and we will respond back to your message within 24 hours.