Features: 【Accurate and Precise Measurement of Grip Strength from 0 to 396lbs (180kg)】: This handheld strength gauge is equipped with a precisions strain gauge sensor, which allows you to have an accurate, digital reading of grip force. Measuring capacity: 0 to 396lb/180kg. 【LCD Display and Bright Screen Display】: The large LCD display clearly displays all measurements on the same screen. Readings displayed include user code, ages, gender, grip value in pounds or kilograms, and grip. And the newly improved bright screen function of the grip strength tester allows you to clearly see the readings of the grip strength tester in a dark environment. 【Memory Recording】: Digital handheld power meter device can store up to 19 user definable data and its record can be retrieved at any time if needed. In addition, each test automatically displays the increase or decrease last recording for comparison. 【USB Charging】: This popular handheld strength gauge is charged via USB, which is more environmentally friendly, and can be used anywhere. Standard AAA batteries (not included) can also be used. 【Easy to use】: Just turn on the hand force gauge and pressing start to measure immediately, and press the manual dynamometer with the force for at least 5 seconds. After testing, the LCD display automatically displays the value of the grip force, bar of grip force is displayed in "strong", "normal" or "weak". Specifications: Material: Plastic Measuring Range: 0 to 396lbs(180kg) Source of electricity: USB charging cable + 2xAAA batteries(not included) Size: Approx. 19.5x12.5cm/7.68x4.92in Package Includes: 1x Hand Force Gauge 1x USB Charging Cable note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.