Measures up to 90kg/ 200lb. For routine screening of grip strength and initial and ongoing evaluation of clients with hand trauma and dysfunction. Sturdy aluminium body construction with scratch resistant UV coating. Easy-to-read LCD display can be set to kg or pounds. The Jamar Smart hand dynamometer works wirelessly with a mobile app. The app (available separately through App Store) is designed to expedite and enhance patient evaluations allowing results to be quickly repeated, edited, and saved. Jamar Smart: Two year warranty, Jamar Plus: one year warranty.