High quality strain gauge load cell system for unmatched accuracy. High density ABS housing and metal support for years of flawless use. Easy Button: on/off, mode, Tare Measuring units: Grammes, Ounces, Grains and Carats. Bright Backlight LCD Screen for easy reading. Tare feature to set zero at anytime. Includes one 50 gramme calibration weights. Easy to recalibrate to ensure accurate weighing. Auto Off feature to save battery. Two AA batteries included.