This electronic luggage scale has the characteristics of exquisite outward, convenient for carrying, precise weighing, reliable for function and resistant to vibration etc. Also with the function of tare, auto-zero, auto-off, unit exchange, blue backlight, data lock, and so on. It is very suitable for travel use, shopping or outdoor activities; like fishing. It is a perfect new weighting tool. Unit exchange This scale is available to measure and display the weight in different UNIT, they are g, kg, oz, and, lb. You can choose the exact UNIT you want before the measurement or you can exchange the UNIT after the measurement, the result will automatically generate between UNIT. 1 kg = 2.2 lb = 35.27 oz = 1,000 g)Power SavingThe scale will be power off automatically 30 sec after you last weighting. Display40mm x 15mm LED display with blue backlight, very easy to read. Tare FunctionA Tare function allow you to add tools for your measurement, When you use container, you should hang the container to the scale then press ON / TARE key to reset to 0, then start the measurement, then you can get the net weight of the object. Lock Result FunctionThe scale has a lock function, this function is used to accurate the weight of the measurement, when the object is stable during measurement, the data will be locked and the LED will display HOLD. At the same time, you can hear beep, read the accurate weight on the screen.