Color: Light GrayNo Electricity or Batteries NeededEasy Do-It-Yourself InstallationThe CRL E-Z Tone Door Chime never needs batteries or electricity, and can easily be installed on all types of doors and jambs. When the door is opened, a magnetic striker hits the toned chime bar and produces a pleasant, audible tone. It can be used in both commercial and residential applications. Once installed no maintenance is ever required. Easy instructions, mounting templates and hardware included.
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