Works perfect with the DH720 Doorchime Intercom!

• Brass plated
• For use with lock sets having up to 1/2" throw
• For use in new or replacement installations in wood or metal jambs
• Voltage class: 8-16V AC, 4-6V DC, 0.9 - 2.5 amps, 2.2 ohms
• Sound: AC - buzz
  DC - silent