Elitech LMC-200 Refrigerant HVAC Electronic Charging Weight Recovery Scale with Wired Remote, Overweight Protection 220 lbs/100 kg Max weighing: 220lbs. (100kg) Operating temperature:14 F - 104 F (-10  - 40  ) Resolution: 5 g / 0.010 lbs./ 0.25 oz Unit can switch between kg, oz and lb Product size:10.6 inch x 10.6 inch x 2.9 inch Power-on self-test:it lasts less than 2s. Tare deduction in full range(100kg) The LCD displays numbers from high digit to low digit.The digit that exceeds the digit range will not be displayed Auto off:If the weight on the platform does not change for 10 minutes,the scale turns off automatically.