Spec：

• ● Power Supply：DC-12V，It supplies by each elevator phone（ with DC-12V battery）
• ● Power Consumption：Standby 10mA˙Max. 180mA
• ● Case Material：A B S plastic
• ● Dimension：137mm ×66mm ×42mm

Function：

• ● 1.It may talk with elevator station.
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