Description
The Merlin 6103 Extra Alert / 2-Line Power Transfer Cartridge features:
• Connects two basic Touch-Tone or Rotary phones for automatic backup in the event of a power failure
• Connects a loud bell or horn for noisy or remote locations
• Installs in the third or last slot on the right side of the control unit
• Works on the Merlin 206 / 410 and 820 Control Units
• Refurbished
• One-Year Warranty