Connect all Tapo Devices, for Smooth Data Flow. Tapo Smart IoT Hub with Chime The Key Gateway Composing Tapo Ecology As the crucial IoT gateway, it increases network accessibility for smart devices (up to 64). It ensures energy-efficient operations, attributed to its low-power wireless protocol. Instant Alarm When connected sensors detect any suspicious motions, H100 will send out an alarm rapidly within 90 dB for security concerns. Smart Doorbell Despite being distant from the door, you can hear the ringtones whilst visitors press the smart button or other smart devices on the door.