Ninja Compact Scale with External Calibration and Carrying Case. Compact design is perfect for weighing applications at work, school, home, or anywhere in between. Meet any weighing application with selectable units of g, oz, ct, and tael (HL-200i) or g, oz, lb-oz, and teal. Long battery life - up to 1000 hours using alkaline batteries. Auto Power Off function helps save battery life; shuts down after 5 minutes of disuse. Low battery indication. Easy to read 13.5mm display. Overload indicator display helps protect the scale.The stable indicator lets you know when the scale is stable and ready to weigh, ensuring accurate results. Can be stored on its side or rear to save space.