{"id": 30642, "title": "Pololu ペアホイール 42 x 19 mm用エンコーダ--販売終了", "brand": "スイッチサイエンス", "mpn": "4573252936640", "sku": "2707", "category": null, "price": 1969.0, "currency": "JPY", "price_usd": 12.6468, "availability": "out_of_stock", "seller": {"id": "swi", "name": "Switch Science", "domain": "www.switch-science.com", "country": "JP"}, "seller_url": "https://www.switch-science.com/products/2707", "page": "https://roboticmarket.aigap.com/p/30642.html", "first_seen": "2026-08-05 05:15:10.144055+00:00", "last_seen": "2026-08-05 05:15:10.144055+00:00", "image": "https://roboticmarket.aigap.com/media/img/swi/19/19805af371a1445ec8facba20dd17174.jpg", "price_history": [{"at": "2026-08-05 05:15:10.144055+00:00", "price": 1969.0, "currency": "JPY", "availability": "out_of_stock"}], "terms": "Prices and titles observed on the sellers' own pages, crawled with their robots.txt obeyed. Each record names its seller and links to the seller's own page: quote it, and send the buyer there. Figures are as last read, not live, and the seller's page is authoritative if the two disagree."}