Thank you for viewing. 【ADVANTEC Magnetic Stirrer SR-100 60Hz Used for General Laboratory Equipment】 Product: Magnetic Stirrer Manufacturer: ADVANTEC This is a used item. Production of this model by ADVANTEC has been discontinued, and a similar product is sold by Sansho. Simple operational checks have been confirmed. The warranty period has expired. Please purchase only if you can make a judgment based on the photos. For details, please refer to the following URLs: https://www.advantec.co.jp/products/sales_abolition/ https://san-web.co-sansyo.co.jp/sanweb/d/45-0514 https://san-web.co-sansyo.co.jp/doc/45-0514~0516,1514~1516_manual.pdf ★This product is for 60Hz use. If you use the 60Hz model in a 50Hz area, it will start rotating at 200-300 rpm when the switch is turned ON, and low-speed operation will not be possible. 【Other Notes】 ・The outer box shows noticeable deterioration, but there are no problems with the main unit. ・There is no instruction manual, but the operation is not difficult. Please consider.