Accuracy and Precision: Check for accuracy and precision specifications of the scale. Look for scales that offer high accuracy to ensure reliable weight measurements, especially if precision is important for your applications.Power Source: Consider the power source options for the scale. Portable mini crane weighing scales often use batteries for power, providing mobility and the ability to operate in locations without access to electrical outlets. Some scales may also offer the option of using AC power or rechargeable batteries.mTare Function: The tare function is a useful feature that allows you to zero out the weight of any additional equipment, such as hooks or slings, so that the scale only measures the weight of the load being weighed. This feature enables more accurate and efficient weighing.