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. Salinity Refractometer for Aquarium, 0% - 10% Hydrometer, RHS-10ATC Fast shipping from California and best price in United States. The Most Accurate Dual Scale salinity Refractometer, Aquarium Sea water IS ACTUALLY A BETTER UNIT, BUT THIS IS WHAT IT IS - CHEAP! WE CRUSH THE COMPETITION EVERY DAY! 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! Product Specs * Ranges: 0-100 ppt of Salinity and 1.000 to 1.070 Specific Gravity * Accuracy: +/- 1 ppt / 0.001 Specific Gravity * Divisions: 1 ppt / 0.001 Specific Gravity * Automatic Temperature Compensation (ATC) * Lightweight aluminum construction 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. Shipping Weight: 1 pound If solid readings are important to you, please consider OUR improved Most Accurate Dual Scale salinity Refractometer, Aquarium Sea water The flawed scale has been fixed so you know your readings are correct! It is the most accurate Wort and Must Specific Gravity Refractometer in the world! How? We actually corrected the flawed scale of the other units after seeing that the SG of the old refractometers and a hydrometer weren't the same. The old scale was a linear formula that leads to incorrect readings. The higher the Brix content, the more inaccurate it became! It is 50% heavier than the other units. Big deal? This is a true instrument, not a cheap toy! What happens when you drop the imported units...? 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. 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