The Secure Logic 20700 Biometric wall safe keeps your important papers and valuables secure. The stainless steel vault installs between two 16″ on-center wall studs with the included installation kit. The vault recognizes and opens for up to three different fingerprints, and there is a key entry backup. The Secure Logic wall safe runs on a 12-volt rechargable battery, so there is no need for direct wiring. You’ll get a warning when the battery needs charging. The vault also has a hidden compartment for your most valuable possessions. Amazon.com sells the Secure Logic 20700 Biometric wall safe for about $305.00.