The RC4121 is a long range wireless doorbell button which has an operating range of up to 250 feet. It also has features like 32 built in codes that block interference from outside signals.

• Long Range Wireless Button.
• Up to 250' operating range.
• Uses (2) 3-volt lithium batteries (installed).
• 32 selectable codes block interference fromoutside signals.
• Set sound on front of button.
• Compatible with all Thomas & Betts, Carlon wireless chime systems.