The PR1500RT2UC is a Smart App Sinewave rack/tower convertible Ups with line-interactive topology, surge protection, and battery backup. CyberPower's Smart App Sinewave series has sine wave output to eliminate power gaps that can be detected by sensitive equipment and cause unexpected shutdowns.The Smart App Sinewave PR1500RT2UC improves battery life through battery equalization technology and Automatic Voltage Regulation (Avr), which corrects minor power fluctuations without switching to battery power. The enhanced chassis design with an easy-to-access toolless front panel, captive screws for battery panel access, and color-coded rear panel make battery changes and installations simple and fast. The PR1500RT2UC also has an innovative Lcd panel that rotates 90 Degree , tilts for a better viewing angle, and provides information on 47 different settings including Ups stats, Ups setup and control management, and testing options.