This Ultrasonic sensor is a non-contact distance measurement module which is compatible with uArm Swift Pro and Seeed Grove system. It's designed for easy modular project usage with highly performance.
uArm Swift series comes with 12 months warranty, for more details please refer our After-sales Policies: http://www.ufactory.cc/#/en/support/question
You probably know that we just finished our VERY successful Indiegogo campaign and now most backers’ perks have been shipped and delivered. Now we are taking orders! Usually orders will be ready for shipment in 7 days after payment. Actual fulfillment time will vary due to stock status and production plan. All preorders will be shipped via DHL by default and you are most likely to receive in about a week. If you have special notes on shipping method(s) or anything, feel free to fill in the form in About Shipping page.