Descriptions :Item : Mini Digital Spoon ScaleWeighing range : 0.1g -300gDeviation: 0.3gWeight : 100gPowered by:2 x AAA batteries (Not included in the package)Usage: Digital spoon scale with LCD display，Combination spoon and scaleIdeal tool to weigh butter， flour， cream， tea or spices during cooking or barking.Assist you to make the job much quickerAuto power off after 5 mins without operations(default)Low consumption for long time use，Low Power AlarmWide application: kitchen， lab， medicine， industry， etc.Don't over load， otherwise it could damage the scale.How to use it :This Scle has 3 functions : Tare function， Mode function， Hold functionPress the on/off 3 seconds to turn on/off the scale "Tare" button on the display for zeroing out the spoon traythere 4 different weighing modes - g=grams， oz=ounces， ct=carats， gn=grains on the MODE key .