Quick Answer: The RENPHO Espresso Scale with Timer, Rechargeable, 0.1g Accuracy, 3kg is a coffee scale designed for weighing coffee and timing manual brewing.Key Details Accurate Measurement: This coffee scale features a 0.1g division and a maximum capacity of 3kg, helping you adhere to the golden rule coffee-to-water ratio 1:15–1:18. Flow Rate Guidance: RENPHO espresso scale monitors your brew in real time with the built-in flow rate indicator and bright LED display, guiding you to maintain steady pour speed and extraction stability. Versatile Coffee Modes: Choosing from 3 coffee modes—Basic Mode, Pour-Over Mode, and Espresso Mode(with auto timer), this small coffee scale caters to all your coffee brewing needs, from novice to expert. Smart Portafilter Memory Tare: In M3 Espresso Mode, calibrate your portafilter weight once, the scale will save it permanently. User-Friendly Design: The food scale with timer features a compact size for portability (5.12 x 5.91 x 0.79in), powered by a 1000mAh lithium battery via Type-C charge, quick access to silent mode, and easy unit conversion (g/oz/lb:oz) under weighing mode.