handeful grip strength tester, digital dynamometer for hand measurement meter auto capturing electronic forearm finger power 198 lbs / 90 kgs, gripping strengthener for sport, home, school, clinic use handeful <p><b>overview</b></p> <p>the handeful digital hand dynamometer is engineered as a professional testing device for handgrip strengths suitable for any doctor's office, physical therapy clinic, engineering lab, or the gym.</p> <p>-adjustable center knob allows the device to be adjusted for different hand sizes and preferences.</p> <p>-19 definable users with options for gender and age to store, along with the ability to save and recall test results for each user. </p> <p>compares individual test run for each of the 19 users, and displays the incremental increase, or decrease from the last record.</p> <p>each test run is rated "weak", "normal", or "strong" based on age and gender data entered for each user.</p> <p>-easy switch from lbs. to kg. at any time, including for last recorded data. </p> <p><b>how to use</b></p> <p>1. remove the isolation tag from the battery case;</p> <p>2. press (on/set) button to turns on; </p> <p>3. the middle two buttons (arrows up/down) allow you to select a different user. then press (on/set) button to cycle between gender and age of the selected user, and edit the values using the arrows.</p> <p>4. when you are ready you can hit the (start) button to test your hand grip.</p> <p>5. now if you press (on/set) button, it converts between lb / kg.</p> <p>6. while squeezing, it shows the amount of force you are currently squeezing, as soon as you let go it shows you the max/peak of what you squeezed. </p> <p>7. press the (arrow down) button if you want to save the result, or hit (start) button to retest.</p> <p>8. after you test your grip, and the max result is displayed, if you wait 6 seconds it will then tell you how many lbs/kgs more/less you've done in comparison to your saved result. </p> <p><b>warranty</b></p> <p>every hand dynamometer is individually hand tested for defects and accuracy before it leaves the factory.</p> <p>we offer 5-year product warranty.</p>