Waterproof, Washable : .The food weight scale has strong water resistance function because it is IP 65 waterproof grade. It is fully dust proof and is able to prevent water from being sprayed. There is waterproof circuit inside, so it is not easy to be damaged even if water enters. The scale is washable in clean water. Remove the batteries before washing to avoid affecting battery life. User friendly, Multifuntion : The digital kitchen scales鈥?timer/count down function: when boiling coffee, or baking or cooking, the timer function would be used. The maximum countdown is 30 minutes. Tare/zero out function: it is easy to zero to remove container weight from the final measurement. Directly shows real weight. III.Lock function: the lock function would be used when the display screen might be blocked (when a big object is to be weighted). When the object is weighted, the buzzer rings and then the display locks on the final weight. The weight will be still displayed on the LED screen after the object is removed. 4 Convertible Units, Quality material, Durable : The scale has 4 units to be chosen and could be converted to your preferred units between g,lb:oz, ml,fl.oz at random to weight solids and liquids. The scale is 304 food grade and stainless steel platform. It has high quality accuracy sensor. III.The scale is easy to be cleaned and is very durable.  USB Rechargeable or 3*AAA Batteries : The scale is long stand-by. It is powered by USB recharging or 3*AAA Batteries. The scale works by 3*AAA Batteries or works by the built-in rechargeable battery that could be charged with the USB cable. You don's have to worry about not being able to use the scale because there is no batteries. You can use the scale with built-in rechargeable battery. Please remove the 3*AAA Batteries if you charge the scale with USB cable. 3*AAA Batteries are included in the package, please note that these batteries are not be rechargeable. Two Measuring Ranges, Accurate to 0.5g/0.1oz : One scale, but two ranges and two precision graduations: it is from 0.1oz to 6.6lb (0.5g to 2.999kg, accurate to 0.5g/0.1oz) and is from 6.6lb to 22lb (3kg to 10kg, accurate to 8g/0.3oz). The scale's two ranges change automatically: if the goods weigh less than 3kg, the scale uses the 0.5g to 2.999kg range with 0.5g/0.1 oz high precision; but if the goods weigh 3kg or more than 3kg, the scale uses the 3kg to 10 kg range automatically with 8g/0.3oz precision graduation. This scale not only meets your demands for high precision but also meets your needs for for large range.