Commax Single Door Phone with Outdoor Door Bell Set, DP2S-DR201D

• Kit includes one doorphone DP-2S and doorbell DR-201D.
• Easy installation with 2-wires to the door station and 2-wires to the electric door strike (optional)
• DP-2S doorphone to talk with visitor and release door (electric strike not included)
• DR-201D door unit to make house call and talk