Check the listing for details. Pocket High Accuracy Programmable Resistance Box. Condition: New. Listed at 450.00 USD. Pocket High Accuracy Programmable Resistance Box. 1x QR101A(±0.01%, 25 ppm, 0.125 Ω step) Please read before you buy:- If you have special requirements on the Resistance Box, ex. Range, Step, Accuracy and Output Terminals. Please PM or email (eastwood.tech.us@outlook.com) us your requirements before you buy. We may be able to build it for you. For speical order product, it may take upto 4 weeks to build it. Our factory is located in Shenzhen, Guangdong China.- We have stock for existing product. We will ship it within 2 days after the order is placed.- It takes about 1~2 weeks to ship it internationally. Product is located in China. Our KS story:https://www.kickstarter.com/projects/eastwoodtech/qr10-pocket-high-accuracy-programmable-resistance-box?ref=28f3i3&token=8ad4f0a3