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Industrial & Scientific > Test, Measure & Inspect > Water Quality & Instrumentation > Hydrometers > B003N3UOAC
  1. Extech Instruments RF11 Portable Sucrose Brix Refractometer (0 to 10%) with Automatic Temperature Compensation
    Image(s) provided for illustrative purposes and may differ from the actual product
  2. Extech Instruments RF11 Portable Sucrose Brix Refractometer (0 to 10%) with Automatic Temperature Compensation

    Delivery: 10-20 Working Days
    Customer Ratings (33 reviews)
    Price R2324.00


This item may be available in a different size, colour, scent, version or platform. Click below to be directed to product options:

Product Description

  • Compact size, easy to operate
  • Automatic Temperature Compensation (ATC) from 10 to 30°C
  • Provides accurate and repeatable measurements on easy to read scale
  • Requires only 2 or 3 drops of solution
  • Prism and lens with a simple focus adjustment
Additional Information

Use these refractometers to take accurate and repeatable measurements of sugar, salt, lubricants, antifreeze, cutting fluids, and more! Simply place 2 or 3 drops of your sample on the prism; the focus adjustment makes the scale easy to read. Automatic temperature compensation ensures accurate readings from 50 to 86°F (10 to 30°C). Includes calibration solution to ensure accurate results


Tools & Home Improvement
Extech Instruments
Extech Instruments
Extech Instruments
Extech Instruments
1 Year
Most Helpful Customer Reviews

I searched and searched looking for upscale instrument and thought this would fit the bill. I thought I was buying an very good quality refractometer judging by the reviews. I did not even bother to try it as it is no better than one for half the price. The package insert says nothing about were it is made, what firm made it, address, email, contact, anything. Save your money. You get the impression you are getting a higher quality instrument, but this is just a chintzy product with a case, like you would get buying a tool at Harbor Freight. Arrive poorly packaged for mailing too. Way over priced. Returning.
UPDATE: As I suspected: This is a Chinese knock-off. Below is the link to what you will get. It is NOT an Extech instrument. I have not heard from the seller. This hacks me off. Will ask Amazon for immediate refund.
I was expecting this to actually measure specific gravity, but rather it has two scales both in the Brix system. That said it has been comparable to my hydrometer when taking beer OG and FG. But it is not useful as a way to take a FG alone and calculate ABV. Use the OG, FG numbers and calculate that. As it came out of the box it read 0 from my tap water at room temp, which was a good starting point for me, but it can be adjusted. Comes with a sturdy plastic case, screwdriver for adjusting the unit, non scratching cloth, and plastic pipette
I purchased this item 5-6 years ago. I use it once a year during grape harvest to take test samples of machine picked grapes and it has been accurate to .1 of a brix on every load that was tested. Taking your crop to a market that requires certain sugar standards in order to pass, this has been a highly valuable instrument and more than pays for itself after one season. Yes, I highly recommend this product, it has been extremely accurate in regards to the more expensive commercial type digital refractometers.
Please Note

The authorised South African distributor of this product is under no obligation to honour the manufacture's guarantees/warranties or to provide after-sales service.

Please note that this item is imported from the USA, and is designed to be used in the USA. In addition, if the unit is powered it will come with a US plug and an adapter/transformer may be required. Please click here for more information on power requirements, or check with us if you are unsure or need any assistance!

Please also note that certain items cannot be imported, these include Alcohol, Animals, Batteries, Flammable Materials, Currency, Food, Furs, Chemicals, Explosives, Medications, Plants, Seeds, Supplements, Pressurized Cans, Tactical Equipment, Vitamins, Weaponry and Weaponry Accessories. In these cases, the item and information is displayed for reference purposes only. If you are not sure if we are permitted to bring an item, please send us an e-mail with a link to the item to confirm.

Please also ensure that you are ordering the correct item for your particular application as returns to the USA are costly. Product reviews are also provided for most of our items, which can give you a good idea for possible things to look out for and the quality of the item. By clicking Add to Cart, you are confirming that the item is correct and you accept the conditions listed here.