Electronic BMI Handheld Body Fat Monitor with LCD Display The device can store data for up to nine definable users and their records can be recalled at any time when needed; In addition, after each test, the increment or decrease from the last recorded increment will be automatically displayed for comparison.Show basal metabolism that the number of calories necessary to maintain life. The measurement speed is fast and the measurement method is simple. After setting the data, press the measurement button and hold the electrode handle with both hands to easily measure the body fat percentage. The measurement results can be read about 7 seconds after the screen is displayed.The results are very close to the water‑weight method, which is used as a benchmark for measuring body fat.Uses the human resistance impedance body and the corresponding body parameters (height, weight, age, gender) to measure the body fat rate. Specification Item Type: Body Fat Measuring InstrumentMaterial: ABSColor: Silver Battery: 2pcs AAA (Not included)Units of Measurement: KG and CMValid value range for data: Height range: 100-199.5cmWeight range: 10-199.8kgAge range: 10-99yearThe number of groups ranged from 1 to 9groups Usage: 1. After installing the battery or pressing POWER, LCD will display in full screen, and the buzzer will be heard and enter the setting state;2. Press SET to enter Height Setting - Weight Setting - Age Setting - Setting;The setting process can be adjusted to the desired setting according to up and down, in which the guest number and age are increased or decreased by 1 unit each time, the height is increased or decreased by 0.5cm, the weight is increased or decreased by 0.2kg, and the gender is converted between men and women;Hold up and down for 2 seconds to enter the fast tuning state;3. After setting the data, press START, and hold the handle with both hands to measure the corresponding fat rate, basal metabolic value and BMI value;4. The test results show the body fat percentage and body type, which can be divided into Emaciated, Standard and Concealing Corpulent., Muscle Corpulent and Corpulent;5. Measurement results such as E1 may be caused by too dry hands during the test, E2 may be caused by not holding hands well, and E3 is beyond the range tested by the body fat machine.6. If the test is stopped for more than 2 minutes, the system will automatically shut down;Please press POWER to answer again.7. Valid value range for data:Height range: 100-199.5cmWeight range: 10-199.8kgAge range: 10-99yearThe number of groups ranged from 1 to 9groups