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D-D Refractometer

Description

D-D Refractometer

Latest UK version with D-D manuals & guarantees

Sent by First Class Post at no extra cost.

A refractometer is a simple and robust way of accurately measuring the salinity of aquarium water and should be instrument of choice for every serious marine aquarist.

Most people when entering the marine aquarium hobby tend to purchase a plastic swing arm hydrometer due to the low price of these items. However, most people are not aware that this type of product can be notoriously inaccurate and can result in wild swings in salinity which is not normally discovered until there has been a system crash or livestock losses and the water is subsequently tested by a retailer.

So what is different about the D-D Refractometer? Most if not all of the refractometers currently available to the aquarium hobby are designed for measuring sodium chloride or brine solution, and not true ‘seawater’. Although seawater is mostly sodium chloride it also contains other elements such as magnesium and calcium that change the refractive index slightly and will give a slightly skewed result when using one of these refractometers.

The most common symptom of this difference in refractive index can be seen when mixing up salt as per salt manufacturer’s instructions and achieving a solution strength where it appears, through testing, that the levels of elements are lower than stated by the manufacturer. In actual fact all of the levels are low as the salinity is not as high as the aquarist believes – we have all seen low calcium or magnesium for a given specific gravity (S.G.), with almost all brands of salt.

It turns out that a 35ppt solution of true seawater has the same refractive index as a 36.5ppt solution of brine and so when using a brine/salt refractometer the salinity is likely to be low by 1.5ppt. This can be allowed for by the aquarist but only if they are aware of the difference.

After extensive development, D-D’s Refractometer addresses this issue, giving true salinity results when correctly calibrated and greater accuracy than previously attainable.

Features:
   • True calibration for Seawater measurement.
   • A new finer scale running from 20-40ppt salinity (S.G. 1.015 - 1.030).
   • 20/20 calibration at room temperature for more consistency and accuracy in everyday use.
   • Full ATC (auto temperature compensation) ranging from 5 to 30C.

Express Delivery next day option available on this item:
In addition to our standard delivery service we also offer a next day Express Delivery option on this item. Just choose the Express Delivery option when you go to the checkout.

Express Delivery orders placed Monday to Thursday can be delivered the next working day. Orders placed Friday to Sunday will be dispatched on the following Monday for delivery on Tuesday.

Orders must be received before 3pm Monday to Thursday, for next day delivery. This option is subject to availability and excludes bank holidays.

For additional information on this service please telephone us on 01624 801848, phones are manned Monday to Saturday 10am - 5.30pm.

© 2012 Reef & River.

Aquarium Mail-Order Specialists since 1984

About Us

Welcome to Reef & River and thank you for taking the time to read this.

Reef & River was originally established as an aquatic mail-order business in 1984, by marine biologist Noel Egan, who is still the manager of the company.

We stock a wide range of aquarium products and spare parts. The range includes big brands such as Hagen, Interpet and Tetra, but it also many smaller specialist ranges from companies such as Tunze, Red Sea and D-D, and all at great value-for-money prices.

As a long established company we know that good communication, prompt service and quality products are what our customers want and we endeavour to provide these each and every time you order from us. Simply place your order and we will deliver it quickly and efficiently to your door.

Should you have any questions regarding the products that we supply then please feel free to contact us. Our staff are experienced in coldwater, tropical and marine aquaria and will be only too happy to help. You can telephone us on (01624) 801848 or email us using the contact box.

Reef & River also offer:

• A UK wide delivery service, including Highlands, Islands and Northern Ireland at no extra cost.

• Clearly categorised products and brands.

• Detailed product descriptions.

• Accurate stock availability.

Thank you for visiting Reef & River and happy shopping.

Noel Egan B.Sc. (Hons),
Managing Director.

Returns

Returned Goods
We hope that you're happy with your purchases, but we also understand that sometimes things are not quite the right size, shape or colour. If you wish to return the product to us for any reason then we offer a simple returns policy.

At Reef & River we are happy to offer a refund on any of our products if they are unwanted. We would ask that you notify us in writing, email being preferred, within 14 days of receipt of the item so we can issue you with a returns number. If you choose to notify us in writing please obtain proof of postage of the letter of notification.

The address for all correspondence and returns is:

     Reef & River
     Returns Department
     Tynwald Mills
     St Johns
     Isle of Man
     IM4 3RA

When returning an unwanted item the customer is fully responsible for the full costs of returning the product back to us. This is in accordance with the Consumer Protection Regulations 2000 (distance selling).

Goods must be returned to Reef & River in the condition in which they were sent. Unwanted items must be returned in the full, original packaging and in an unused condition. Should the product not be returned to us in a saleable condition then we reserve the right to refuse a refund.

Where an unwanted item is to be returned to us the customer is obliged to take reasonable care to ensure that the goods are not damaged either in transit back to us or whilst in the customer's possession. To minimise the risk of damage in transit we would strongly recommend using either a courier service or a traceable method of posting in order to return the items back to us. Any items missing from returned orders will be deducted from any refund as will any additional postal costs incurred by Reef & River in recovery or receipt of goods.

A full refund inclusive of delivery charges, or a replacement, will be given in the event of returning damaged or faulty items. We will refund the return shipping costs up to a level of Second Class Recorded Post. If you choose to return faulty goods to us using either a First Class or Special Delivery Service we cannot refund the additional cost of these services.

Failure to comply with any of these points may affect your refund. Providing you have fully complied with all the conditions above, Reef & River we will refund your original purchase price of goods including any standard delivery charges we have charged you, optional or express delivery costs cannot be refunded.

Damaged Goods
All our products are checked at time of postage. Unfortunately items do occasionally get damaged in the post.

Should you take delivery of any damaged or faulty items we would ask that you inform us as soon as possible by email. Informing us of damage should not occur later than 7 days after receipt of products.

Should the damage to the packaging be visible on delivery we would request that you write this clearly on the delivery note at the time of receipt. This will help any claim against the courier company for damage in transit. In this event we may be required to supply the buyers' details to the courier company in order to allow them to investigate the cause of damage.

If your product is damaged or faulty we will arrange a refund or replacement as appropriate and as outlined in our returns policy.

Missing items
All orders are double checked at time of dispatch. However, should you take receipt of an incomplete order please contact us no later than 7 days after receipt of item. We will rectify the order as soon as possible.

Refunds
Refunds are normally issued within 3 days of the safe return of goods in accordance with the conditions above. Please allow up to an additional 3 days for the refund to appear back in your account from your payment provider.

Payments

Paypal is our preferred payment method because it is easy to use and payments clear quickly, allowing us to dispatch your item promptly.

If it is more convenient for you to pay by credit card then telephone us on (01624) 801848 and we can process your payment. When paying by credit card please quote your eBay username as this will make identifying your order quicker and easier. We accept most major credit and debit cards.

We are only able to ship your order when your payment has been processed and cleared.

Delivery

Our deliveries are sent by Royal Mail or by courier.

Orders are dispatched Monday to Friday. Orders received after 3pm Monday to Thursday will be dispatched the following day. Orders received after 3pm on Friday will be dispatched the following Monday, excluding Bank Holiday Mondays.

If you need your item urgently please contact us before ordering to confirm we can meet your deadline. If the item you have ordered is out of stock then we will let you know as soon as possible, normally within 48 hours.

Most deliveries arrive within 2 - 5 working days, however, we do ask you to allow up to 10 working days before contacting us regarding non-delivery of an order. Please allow for longer delivery times during Christmas, New year and Easter.

All orders are packed as securely as possible to avoid damage in transit.

We offer a UK wide delivery service including Highlands, Islands and Northern Ireland at no extra cost

We can also ship to the Republic of Ireland but please email us first for a delivery price.

Any item that arrives damaged or in error must be notified to us within 48 hours of receipt.