COMPACT & PORTABLE - Compact, portable battery design; Operates on 5 AA batteries (Battery not included); Includes three separate display modes for kg, oz, and lbs. for specific needs; Combined aluminum and silicone creates high traction and prevents slippage HIGH-QUALITY BUILD - High-visibility LCD screen and backlight for display; With an extremely large LCD display and backlighting, you'll have no trouble keeping track of your measurements MEMORY PROGRAMMABLE - Memory features allows storage up to 100 charge/recovery programs AUTO REMINDER & SHUT OFF - The valve will shut off automatically and the lights will turn on when it reach the weight you set FAIL SAFE DESIGN - This unit is designed with a fail safe feature that will close the valve in the event of lost power due to low battery voltage of it the unit is accidently turned off