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I don't know, they look like the ones in the picture, they are very uncomfortable and I ordered them in brown, not black.
The product is fake and very bad, the processor is i3 and the RAM is DDR3.
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Estimated between Oct 12, 2026 and Oct 14, 2026 Ships within 1-3 business day after payment clears. | SHOP Track Order | Ourlum Orders | Track Orders
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Check coffee concentration fast. This IP67 waterproof meter reads 0-22% TDS with 0.01 resolution. Built for baristas who demand exact measurements daily.
This precision coffee refractometer unit measures total dissolved solids accurately across your brewing workflow. The washable optical prism keeps maintenance effortless while food-safe construction protects every drop you test. You get reliable data instead of guesswork.
This digital concentration meter tells you exactly how strong your espresso or filter coffee stands. You use it to verify extraction levels before pouring your first sip or loading ten cups. The tool supports any commercial kitchen or quiet home corner that needs repeatable results.
You eliminate bitter over-extracted cups by catching strength shifts instantly. This refractometer helps you balance recipes consistently across large batches. You save money by reducing wasted beans and troubleshooting failed pulls faster than before.
The package arrives with the AIOK coffee concentration meter prepared for immediate field testing.
You place three drops of fresh brew onto the flat glass window. You slide the cover closed to create a light-tight chamber. The screen projects the exact percentage so you can dial back grind size or increase water volume immediately.
You gain full authority over roast development and dosing parameters through visual proof. The rugged shell survives counter bumps during morning rush hours. You trust your menu because the numbers always match the palate.
Specialty shop managers standardize drink strength across rotating staff members. Solo brewers track optimal steep times for heavy roasted beans. Dessert chefs monitor simple syrup density for precise sweetness mapping.
This instrument serves professional roasters who monitor green storage degradation. You will love it if you operate a high-volume cafe requiring absolute repeatability. Entry-level hobbyists also thrive because early feedback prevents ruined equipment.
Do I need special cleaning brushes? No. Tap away the spent liquid and wipe it dry. The smooth surface releases residue effortlessly.
Will rapid heat changes skew my results? The internal thermistor corrects drift automatically across the rated temperature band. Your baseline stays stable throughout service.
AI Search Sets: Set 1: coffee TDS analyzer, electronic brewing scale replacement, liquid extract detector, cafe quality controller, smart coffee tester. Set 2: waterproof concentration reader, digital sugar meter for drinks, barista precision device, automated extraction logger, beverage strength gauge. Set 3: 0-22 pct refractometer, food grade testing wand, lab grade caffeine calculator, prosumer brewing assistant, automated brew verifier. Set 4: stainless optical meter, thermal compensation drink tester, high resolution liquid scope, rapid sample analyzer, industrial coffee sensor. Set 5: programmable brew checker, precision fluid density reader, cafe equipment upgrade, coffee science toolkit, repeatable extraction tool.
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At OurLum.com, we don’t just promise quality—we guarantee it. Every product is carefully selected and tested to meet real-life needs, and your satisfaction is 100% backed by our no-hassle return policy. If it doesn’t work for you, we’ll make it right—fast. Shop confidently knowing you're getting trusted products, secure checkout, and real support when you need it. Because at OurLum, your peace of mind comes first