Spec：

• ● Power supply： input 110V、output DC-12V AC-24V.
• ● One output MS outlet（3pcs connecting wires）.
• ● Material：SECC (Galvanization steel plate).
• ● Dimension：137mm ×85mm ×54mm.

Function：

• ● 1.Red wire：There is a DV-12V, provide the power source for calling and talking of function
• ● 2.Black wire：There is a ground – voltage, provide the power source for calling and talking of function.
• ● 3.Brown wire：There is a AC-24V, provide the power source to door bell.
• ● 4.Red wire and black wire connect with 110V alternating current.
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