Handheld  Body Fat Monitors LCD Screen Analyzer 6 Seconds Accurate BMI Meter Health Fat Easuring Instrument. Features: - Wireless, handheld, lightweight, portable, easy to carry and use. - 9-person-profile memory. - Easy to read with large LCD screen. - Display the correct result in 6 seconds. - Measures your body fat percentage, BMI, body shape and basic metabolism. - After inputting your personal data, a measurement can be started by simply holding the grip electrodes and pressing the start button. Since the analyzer is built with a nine person profile memory, each member of your family or team can track the success of their individual exercise routines. - Body shape is categorized into: emaciated, standard, hide corpulent, muscle corpulent and corpulent. - Energy saving with auto shut-down function.   Specifications: Temperature & Humidity of Usage: 10~40 C, 30%~85RH. Temperature & Humidity of Storage: -20~60 C, 10%~95%RH. Push button: SET, POWER, START, UP, DOWN. Power supply: 2 x AAA batteries (not included). Height: 100~199.5cm. Weight: 10~199.8kg. Introduction: 1. Body fat percentage is calculated by the five data in the formula that are height, weight, age, gender and the resistance value between 2 palms. This formula is developed among different people groups and has been tested. It is categorized into: low, standard, slightly high and high. 2. BMI is calculated by: weight (KG) / square of height (M). It is categorized into: emaciated, standard, slightly obese and severely obese. 3. Basic metabolism rate is calculated according to the input personal data. It shows the regular daily heat consumption except the heat consumed during sporting. 4. You can timely find out the body fat percentage and try to balance your daily diet and  sports according to the measurement result, so as to achieve the goals of being  healthy, fit and pretty. Package Included: 1 x Handheld Fat Easuring Instrument. 1 x Instruction manual