The Sola 3 is now available with the Sola 3 Standard Body or the Sola 3 Plus a larger body with larger button. The Sola 3 Plus easily adapts to new or retrofit installations. A versatile electronic keypad designed to effortlessly secure day-use or private-use lockers, Keypad operation‚ Vertical body style‚ Offset or flat cam‚ Code or Key Management‚ Dual functionality - Shared Use or Assigned Use‚ All metal housing with knob pull‚ Brushed nickel finish‚ Surface mount‚ Designed for new or retrofi t installations‚ Multiple cylinder lengths available‚ Visual & audible indicators‚ IP55 rated for moisture and dust protection‚ Powered by 2 premium lithium CR2450 batteries‚ Battery Life: 180,000 cycles based on average usage.