【Supports adding up to 128 sub-devices】Zigbee Bridge Pro supports adding sub-devices increased from 32 to 128.
【Smart Home Security】Set up home security modes, such as home mode, away mode, and sleep mode. The bridge can be used as a local alarm.
【Local Smart Scene】Timing and scene linkage between Zigbee devices can be executed normally even if the network is disconnected.
【Wi-Fi & Zigbee Dual-protocol Support】Make communication between Zigbee devices and WiFi devices.
【Strong Connectivity, Limitless Possibility 】The Bridge supports to add ZigBee devices that SONOFF has released, like ZBMINI-L smart switch and S26R2ZB smart plug, making your home smarter.
NOTE: ZB Bridge-P can connect 26 sub-devices directly (10 end devices + 16 routers, or 26 routers). If you want to connect to 128 sub-devices, routers are required, and one router-device can expand to connect 20-32 sub-devices.
SONOFF Zigbee Bridge Pro can work with the devices below:
Router: ZBMINI smart switch,S40 Lite ZB smart plug, S31 Lite ZB smart plug, S26R2ZB smart plug
End Device: ZBMINI-L smart switch, SNZB-01 switch, SNZB-02 Temp. and Hum. sensor, SNZB-03 motion sensor, SNZB-04 door/window sensor,SONOFF SNZB-02D
【Remote Real-time monitoring】SNZB-02D sensor will monitor the temperature and humidity in real time on the APP remotely or display screen, with up to 120m/400ft coverate.
【High Accuracy & 5s Fast Refresh】Built-in Swiss-made smart hygrometer sensor that gives you more accurate readings maintaining ±0.2°C/±0.4°F accuracy in temperature and ±2%RH accuracy in humidity, refreshes readings every 5 seconds.
【Large LCD screen display】Use large LCD display to view the real-time values of temperature humidity clearly and dynamically, the intuitive display icons let you check the room conditions and battery status even easier than ever.
【App notifications】You’ll receive instant alerts from your phone when the temperature or humidity exceeds your set comfort level.
【Data Storage & Export】Up to half-year free cloud storage, and most accurate enough to view hourly data, you can also check the highest and lowest values at any hour or day and data can be exported as files.
Note: SONOFF DW2 doesn’t come with batteries into the package.
Waterproof DS18B20 Temperature Sensor Temperature Transmitter 1m 
SONOFF iHost RV1109 2GB Smart Home Gateway Zigbee3.0 WiFi bluetooth Smart Home HUB Local Private Server Locally Control Devices Smart Scenes 
