Nevada Weighing Tree LCT 33 Large Counting Scale: 2 year manufacturers warranty. External Calibration Model with Built in AnyCal software! Test Weights NOT included. 9 memory keys to store weights. Hi-Low Checkweigh feature. Weighs in pounds or kilograms. Large heavy gauge stainless weighing platform size of 13 x 9 inches A/C adapter or re-chargeable batteries both are included. Low Battery indicator. Stability indicator. Die cast aluminum sub support, bottom sensor support. Steel footing. Large LCD digits on indicator Automatic back light feature (Selectable,). Level bubble. Auto shut off feature. Selectable to turn off after 3,5,10,15,20,30, 60 minutes or stay on permanently. No RS232. 2 Year Warranty.