Buyers should prioritize systems with dual-channel functionality, allowing for independent control of two cuffs during bilateral or IVRA procedures. Ensure the device features Automatic Pressure Regulation with an accuracy of ±5mmHg and a pressure range of 0 to 600 mmHg. A critical safety feature is the Integrated Battery Backup, which should provide at least 4 to 8 hours of continuous operation in case of power failure. Additionally, look for Limb Occlusion Pressure (LOP) technology, which calculates the minimum pressure needed to occlude blood flow, reducing the risk of nerve damage.