Holiday Return/Exchange Policy: For customers who purchase between now to December 25th, we will automatically extend the return/exchange date to January 31st. No restocking fee, no question ask, hassle free return. ATC Economy Glycol Antifreeze/Battery/Cleaning Fluids Refractometer Tester RHA-503ATC We offer 4 years warranty for this tools, no other sellers offer this warranty. If anything goes wrong, we will simply send you a brand new one! Brief Description This refractometer (RHA-503ATC) is designed to test concentration of battery fluids, antifreeze liquid and cleaning fluids. Compared with other Battery Acid refractometers, this tool has 4 scales design to measure the freezing point of Windshield Cleaning Fluid. With the indication of the percentage of concentration, you will know at which temperature (C) of the fluid will be frozen for Propylene Glycol, Ethylene Glycol and Cleaning Fluids. Moreover, it can be used for checking the strength of electrolyte solution batteries in unit of Specific Gravity (sg). Specific gravity (sg) is the ratio of the density of a given solid or liquid to the density of water at a specific temperature and pressure.RHA-503ATC is built with Automatic Temperature Compensation (ATC), so that the refractometer is automatically adjusted to correct temperature discrepancies of environment temperature. Features Quad-scale design to measure concentration or density of Battery Fluid, Propylene Glycol, Ethylene Glycol and Cleaning Fluids Sturdy and light weighted Aluminum body High quality and accurate testing result ATC Compensation Range (Built-in Automatic Temperature Compensation System) from 10C to 30C Easy and very convenient to use Can be easily calibrated with a mini-screw driver What does it do? ? It will tell you the freeze point of your ethylene or propylene glycol antifreeze! It will tell you the concentration of ethylene or propylene glycol antifreeze in water by percentage! It will tell you the condition of your battery by measuring the Battery Acids Specific Gravity - the weaker the acid SG, the weaker the battery strength! Specifications Measuring Range: Ethylene Glycol: -50 C ~ 0 C Propylene Glycol: -50 C ~ 0 C Cleaning Fluids: -40 C ~ 0 C Battery Acid: 1.100 ~ 1.400 sg (specific gravity) Divisions: Ethylene Glycol: 5 C Propylene Glycol: 5 C Cleaning Fluids: 5 C Battery Acid: 0.01 sg (specific gravity) Accuracy: Ethylene Glycol: 5 C Propylene Glycol: 5 C Cleaning Fluids: 5 C Battery: 0.01 sg (specific gravity) Automatic Temperature Compensation (ATC) Traditional version: Using screw driver for calibration Sturdy and light weighted Aluminum body Item size: approx. 150 (L) x 29 (W) x 29 (D) mm (5.91 x 1.14 x 1.14 inch) Item weight: approx. 140 g (4.94 oz) Included are: a pipette for dropping test fluids onto the prism (never dip the refractometer into the test fluid!), a mini screwdriver for scale calibration, and a Users Guide. Payments are accepted through Paypal. We ship through USPS Priority Mail, it usually arrives in 3 business days. International: We charge the same shipping cost to all our customers worldwide. Our default shipping is United State Postal Service First Class mail, it take 5-10 business days for delivery. we also offer Express Mail which only take 3-6 days. Handing time: 1 business day. MyStoreMaps improve local and international sales. We promise our best quality and the lowest price for our customers, if the item is not as the same as the description in the listing page, we will issue a exchange or full refund. if the item is the same as the description, we will charge a 15% restocking fee. Our goal is to place a profit margin of $1 ~ $3 per item and sell in volume. As such, the more you save the more we make. While the others are selling 1 item, we are selling 10 ~ 20 items due to our price reduction. VISIT US AT WWW.OPTICSFACTORY.COM Please use the "Ask Seller A Question" button. Please allow up to 24 hours for a response. Usually the buyer will get response in 6 hours. Track Page Views With Auctiva's FREE Counter