ElevatorSignalMaster - Micro-Power Elevator Signal Coverage System

Solve the mobile signal dead zones inside elevator cabins. The system consists of a Master Unit and a Cabin Unit: the Master Unit receives outdoor base station signals through donor antennas and covers the elevator shaft, while the Cabin Unit relays and amplifies the signal to achieve good coverage inside the cabin. Multi-network integration, a single device simultaneously amplifies 4G+5G signals of multiple operators, compatible with Saudi mainstream operators (STC/Mobily/Zain); supports 800/900/1800/2100/2600/3500MHz, available for single-frequency or multi-frequency customization; maximum output power of 23dBm; self-oscillating automatic detection shutdown, ALC automatic level control, and no-load protection; optional remote monitoring (local Bluetooth/PC connection). Suitable for high, medium, and low-rise buildings such as office buildings and residential buildings.