This electronic hand grip strengthener tester can store up to 19 user-definable data sets, including g and age, and records can be viewed at any time. The grip strength tester features automatic storage and recall of the last recorded test for each profile, with visual indication of whether the current test shows an increase or decrease in hand strength. Comfortable to Use - The ergonomic handle design fits comfortably in the hand, with adjustable handle length to accommodate different hand sizes, providing a customized fit for each user. Large LCD Display - The large LCD screen displays precise measurements including user code, age, g, grip value in pounds or kilograms, and grip status. All data is shown clearly on one screen. Users can save and monitor grip values across weak, normal, or strong power levels for easy comparison. Multi-Occasional Use - Grip testing is beneficial for sports such as rock climbing and wrestling. This hand dynamometer is ideal for physical therapists, occupational therapists, athletic trainers, chiropractors, and general practitioners. Grip strength is also considered an important indicator of overall health. Best Gift Idea - This grip strength tester makes a thoughtful gift for sports enthusiasts, athletes, and for home or clinical use. Power Supply: 2 x AAA batteries (batteries not included) Color: Gray Material: ABS Package Contents: 1 x Grip Strength Tester Note: Light reflection and differences in display screens may cause slight variations in the color of the item as seen in images. Measurement error allowance is +/- 1-3 cm.