Probably the most perfect coffee scale for professional baristas and coffee geeks. Ultra sensitive and fast reacting, waterproof, auto-tare function, auto-timer function, rechargeable (micro-USB port) and beautifully designed. Connect the Lunar with your smartphone via bluetooth for access to Acaia mobile apps to track your brews. Accuracy of 0.1g up to maximum 2kg. Ideal for putting on the drip tray of your espresso machine to weigh your shots during extraction.