The Deling Built-in Intercom Extension Unit NKT06(1-1)B is mainly installed inside the elevator car, on the car top, or in the pit. It is used for routine maintenance and emergency rescue scenarios, effectively ensuring smooth communication between the inside and outside of the elevator and protecting personnel safety. Depending on actual requirements, you can choose between a two-wire or four-wire configuration, to be used in conjunction with external extension units and main units. Please contact customer service for more information.
