The RC3670D entrance alert chime has 3 built in tunes and up to 32 selectable codes that block interference from external devices. You can use it to monitor cabinets with valuables in them.  Please note.  Product does not work well on metals doors. For metal doors, we recommed the DA50L-A. 

• Chime Sounds When A Monitored Door Is Opened
• 3 Tunes: Dong, Ding Dong & Westminster Chime
• 32 Selectable Codes To Block Interference From Outside Signals
• Up To 150` Operating Range
• 1 1/2" Speaker
• Clam Shell Pack.
• White Color