From the product description, check product page for current description, price and availability:
- Capacity–up to 50lbs, sensitivity–0.1oz（0-25lb), 0.2oz(25-50lb), reading modes–pounds/ounces, ounces, kilograms/grams, grams
- Key functions–tare(allow you to reset the display to 0.0), hold (especially for weighing a over-sized item)
- Self-calibration technology–does not require a 50lbs weight, you can choose any known weight starting from 5 lbs. for calibration purpose
- Power– run on 3 x AAA batteries or 5v adapter (both includ
Tare Function: Tare allows you to subtract the weight of the container you’re using to get a true weight of the contents. Add your empty container to the scale and press the tare button. This zeros out the scale. Now add the thing you’re weighing and the scale displays just the weight of the contents of your container. In my opinion the tare function is essential for any good homebrewing scale.
8/12/18 11:30 AM Central: This has dropped to just $16.19. That’s the best historical direct from Amazon price I found. Shipping to most US addresses is also free with Prime Membership [Try Prime for Free] or a qualifying order. Prices, shipping and availability can change quickly. Please note that product prices and availability are subject to change. Prices and availability were accurate at the time this this post was published; however, they may differ from those you see when you visit Amazon. Check the product page for current price, description and availability. Also: Recent Amazon Finds and Amazon Fillers Resource Page
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