I purchased and used this several years ago, but I no longer use it, so I'm putting it up for sale. It's relatively clean. Size: Width 120mm, Depth 190mm, Height 29mm Material: Main body/AMS resin, Anti-slip/Silicone rubber Measurement range: 2~2000g Measurement time: Up to 99 minutes and 59 seconds Measures both extraction amount and time simultaneously. Measures the important blooming time and extraction time for V60 hand drip with a timer. You can also manage the amount of extraction at the end, so you can always achieve stable extraction. New batteries (2 AAA) are included.