Coffee Brewing Control System – Coffee TDS Refractometer and Digital Scale with Timer, 0.02% Precision, 0.1g Resolution, Smart App, Rechargeable, Ideal for Pour Over and Espresso

Imma go 5 stars for. 1. Great product works as described. Integrates with their scale perfectly. 2. Easy to set up. Really gets your coffee game up to speed for a better cup in no time. Learn how grind size can make a huge difference.. Customer service is Top notch. I had issues with their scale. Got me in the right direction ASAP Because of this I bought the R2. No regrets... Buy it it's a great piece of gear.. Works for espresso as well.. Enter the numbers the amount of coffee you brewed. The weight of the cup .. it does all the work It would be nice if they had a chart on how to dial in sour or bitter coffee. But easy enough to get the info on the web. Kudos

Very easy to use and is accurate.

I guess this R1 Brix Difluid refractometer is a discontinued version as it is no longer available in the listing. Now it shows a completely different meter for coffee at a very high price at $229. I thought $59 was expensive but I'd never spend over two hundred dollars on it. The meter I received is tiny which I like because its portable, but I'm not sure how robust it is overall. It seems to work fine, but since I don't have other meters to compare measurements with, it's hard to say for sure. I got it to use with making juices and drinks with Brix readings which it was originally marketed for and not for coffee use which is what the new black meter is marketed for with TDS readings. I downloaded the app and it is only intended for coffee brewing use and not other general use, so I have no use for the app. I do not like that the device has a constant radio wave/bluetooth emitter even when I'm not using the app. I'd like to turn off this function since it is not needed in my use. The instructions provided are on a small flimsy paper which isn't practical to keep with the meter. I think it would be better if they had laminated instructions that are more durable and just in English. I checked the app to see if the use instructions were included so I could always reference there if needed, but they are not included in the app, which is a miss.

Great quality. Very compact.

The unit does power on and does give a result however, the result is nothing close to what the documentations says it should be. You can’t trust the results.

…I can’t figure out how to use this thing because the instruction manual is entirely in Japanese…?

Easy to use

My brother is a serious coffee connoisseur (nickname given by us, not a real professional lol), the kind who travels with half his brewing tools but still complains about the equipment he cannot bring. Every time he stays at my place or the family vacation home, he mentions something that is missing from his ideal setup. So I thought this would be a perfect gift for him to keep at the vacation house, where he wants to build a second little coffee station for everyone who enjoys a good cup. I am the black sheep who drinks whatever is available, but the rest of my family is coffee lover as much as he is. This set has worked out really well so far. The refractometer reads consistently, the precision feels accurate, and the scale responds quickly with a stable readout. The built-in timer makes pour-over brewing much easier for him, and the app has been surprisingly smooth for tracking TDS and dialing in consistency. He said it gives him all the basic control he needs without dragging extra equipment around. Well, he seems happy with it, and for someone who is this particular about coffee, that says a lot. I think this makes a great gift and has been a solid addition to our vacation home coffee station. In short, I think this was a worthy acquisition in terms of overall quality vs price.