50kg/50g, 30kg/20g,20kg/20g ?Auto zero setting tracking ?kg & lb conversion ?Easy for operation ?Auto power off in 30 seconds ?Auto calibration ?Aluminium housing Operating Temperature:50 to 104°F / 10 to 40°C Attached function:Measurement tap and Thermometer Display:0.3" (0.8 cm) high LCD Error: 1 division Power Requirements:2*CR2032 batteries,can be used one year Dimensions (W x H x D):97*54*22mm Net weight:235g Packing details:80pcs/ctn, 10pcs/inner, 45*31*38cm, 20kg