Replacement paddle with stirring rod Fisher Scientific accumet benchtop stirring probe is used with XL series Benchtop Meters (Models XL150, 200, 250, 500, and 600) and AB series (Models AB150, 200 and 250) Order Info Compatible with the following models: XL150, XL200, XL250, XL500, XL600, AB150, AB250, AB200 Warranty and Services One year