40 Kg - 88 Lb Electronic Portable Digital Scale Fishing Luggage + Batteries 3 weighting units: kg/ lb/ oz. Min Weighting: 10 g. Max Weighting: 40 KG. LCD Size: 30mm x 20mm. Low power alarm function. Auto power off function to save energy: if not press the buttons within 2 minutes, the scale will turn off automatically. Power Supply: 2 x 1.5V AAA Batteries ( Batteries Included ). 3 Keys: UNIT, POWER, TARE. UNIT Key for changing weight unit from kg&gt;lb&gt;oz&gt;kg; POWER Key for switching n/off and locking functions; TARE Key for removing tare and choosing locking functions. High quality 40 KG - 88 LB Portable Scale, wonderful Tool to use in kitchen, family, shop, Super Market, fishing, luggage, indoor, outdoor, etc.