{"type":"product","schema_version":"1.0","item_id":"100374678703","canonical_url":"https://tw.bid.yahoo.com/item/100374678703","title":"現貨 防水防油 耐腐蝕 PT100 A級+-0.15度3線式德溫度探頭保護管保護套管 M12 孔鑽12-13國製白金電阻","subtitle":null,"condition":"全新品","currency":"TWD","observed_at":"2026-05-20T12:50:27.820Z","current_price":300,"original_price":null,"stock_status":"low_stock","available_quantity":1,"sold_quantity":0,"seller":{"id":"Y1501592255","name":"台中神岡電熱溫產品設計製造銷售","positive_rate":null,"rating_count":null},"images":[{"url":"https://img.yec.tw/ob/image/2ad1f054-a176-4f69-9d7d-58c8b171bdcb.jpg","role":"main","alt":"商品主圖","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/eb47432d-bf0b-4c1f-9712-6329a4d72863.jpg","role":"detail","alt":"商品圖片 2","width":null,"height":null}],"description":"牙M12+螺母線1M$300/條\r\n牙M12+螺母線2M$350/條\r\n牙M12+螺母線3M$400/條\r\n 3種長度有現貨 外採高溫鍍銀線包鐵氟龍管, 防水, 可耐溫至300度 C Pt100溫度傳感器 感溫棒 使用溫度-70+200度 短時間可用-70-+260度 採用德國製白金電阻 滾口封裝防水防油溫度探頭316不鏽鋼D4*30MM長 可直接放水中 油中 Pt100是鉑熱電阻，它的阻值跟溫度的變化成正比。 PT100的阻值與溫度變化關係為：當PT100溫度為0℃時它的阻值為100歐姆，在100℃時它的阻值約為138.5歐姆。它的工業原理：當PT100在0攝氏度的時候他的阻值為100歐姆，它的阻值會隨著溫度上升而成勻速增長的。 金屬熱電阻的電阻值和溫度一般可以用以下的近似關係式表示，即 Rt=Rt0[1+α（t-t0）] 式中，Rt為溫度t時的阻值；Rt0為溫度t0（通常t0=0℃）時對應電阻值；α為溫度係數。半導體熱敏電阻的阻值和溫度關係為 Rt=AeB/t","shipping_methods":[{"name":"7-ELEVEN取貨付款","fee":0,"currency":"TWD"},{"name":"宅配/貨運","fee":0,"currency":"TWD"},{"name":"郵局掛號","fee":0,"currency":"TWD"},{"name":"萊爾富取貨付款","fee":0,"currency":"TWD"}],"lowest_shipping_fee":null,"payment_methods":["ATM轉帳","萊爾富取貨付款","7-ELEVEN取貨付款"],"category_id":"2092079121","category_name":"溫度設備","breadcrumb":[{"id":"2092104053","name":"寵物用品與水族","url":"/tw/%E5%AF%B5%E7%89%A9%E7%94%A8%E5%93%81%E8%88%87%E6%B0%B4%E6%97%8F-2092104053-category.html"},{"id":"2092079117","name":"水族用品","url":"/tw/%E6%B0%B4%E6%97%8F%E7%94%A8%E5%93%81-2092079117-category.html"},{"id":"2092079121","name":"溫度設備","url":"/tw/%E6%BA%AB%E5%BA%A6%E8%A8%AD%E5%82%99-2092079121-category.html"}],"view_count":0,"watch_count":1}