🌡️ Extech RF20 Temperature Compensation Refractometer: Accurate Measurements with Advanced Temperature Compensation Technology Review

Let me start by saying that this is an absolutely superb product. I finally know the exact salinity of my tanks in a matter of seconds. There are some great things that come with this refractometer that are not mentioned in the description. The package includes a small bottle of distilled water and a mini flathead screwdriver for calibration before first use. It also comes with a nice mini microfiber cloth to wipe down the prism between uses. This is by far the most accurate way to measure the…

I use this device to measure the salinity in my aquarium and for the first time I know the true value of this important parameter. At first I used an ordinary plastic hydrometer and trusted the results, but then I bought a second hydrometer and the readings were completely different from the first one. That's when I realized I needed more accuracy, and this machine is certainly more expensive, but the accuracy you get is worth the extra money. It turned out that the salt level in my tank was…

I've been looking for a quality instrument for a long time and thought it would fit. I thought I would buy a very good quality refractometer based on the reviews. Didn't even bother to try it as it's no better than half the price. The leaflet says nothing about where it was made, what company made it, address, email, contacts, anything else. save your money It feels like you're getting a higher quality instrument, but it's just a cheap product with a case, like you're buying an instrument from…