Overview SONOFF Zigbee Bridge Pro is the updated Zigbee bridge that enables you to manage up to 128 sub-devices with larger capacity and stability, plug-in devices can act as Zigbee routers to extend the network range. SONOFF Zigbee Bridge Pro newly added features like smart home security, local smart scene, and easy arm and disarm. You can customize 3 modes by setting different arming devices. The local smart scene always works well even Wi-Fi is disconnected. Built-in high-precision local RTC, a short power outage will not affect the time synchronization. Time schedule can return work once power restoration. Note that the local scene is for Zigbee devices only. SONOFF ZBMINI-L smart switch, S26R2ZB smart plug, SONOFF Zigbee wirele switch, and sensors like temperature and humidity sensor-SNZB-02, motion sensor-SNZB-03, and wirele door/window sensor-SNZB-04 can be connected with the Zigbee Bridge Pro to give you more poibility to create various scene linkages. It can also command Alexa, Google Aistant and SmartThings to voice control your home. SONOFF SNZB-01Pis a small Zigbee wirele smart switch that can even fit in your pocket, with preset actions for single pre, double pre, and long pre to control multiple devices. Compared with SNZB-01, SNZB-01P has improved design and performance. With a larger button area, 5 years battery life, external pairing button, the battery is easier to install and replace. SNZB-01P can be placed wherever your need, or stick with 3M Adhesive and a metal plate on a flat surface anywhere, then create a smart scene, like turning off all devices with one lick. Two-way control is even available for you to turn on/off the light from two locations. Besides, The SNZB-01P can also be used as a doorbell when connected to the NSPanel Pro, you will be notified when visitors pre the wirele switch. SNZB-01P is battery-operated, your mobile phone will receive a low-battery notification when the remaining battery level is low. SNZB-01P support checking 3 months' history. SNZB-01P can be placed wherever your need, or stuck with 3M Adhesive and a metal plate on a flat surface anywhere. SNZB-02Pis an upgraded version of SNZB-02, it is a temperature and humidity sensor with low power consumption. Equipped with Zigbee 3.0 protocol, supporting various gateways, including SONOFF Zigbee 3.0 gateways like SONOFF iHost, NSPanel Pro, ZB Bridge Pro, and ZBDongle-E, Alexa with Built-in Zigbee Hub, etc. High accuracy built-in Swi-made sensor ensures accurate measurement of room temperature and humidity, the temperature is accurate up to 0.2 while the humidity is 2%RH, data is updated every 5s, and always gives you the latest changes in the environment. You can set the comfort alert, when the room temperature or humidity exceeds your set comfort range, you will receive immediate notifications on your phone, helping you maintain room comfort and ensuring life quality. Supporting cloud-based historical records, the temperature and humidity data of each day will be stored in the App. You can easily acce the temperature and humidity variations for each day, month, or every six months through real-time queries. Additionally, you can download the data to enhance your living environment based on temperature and humidity trends. SNZB-02P supports 3 mounting methods, stick with 3M Adhesive, stick with 3M Adhesive and Metal Plate, or screw mount, just place the sensor anywhere you wish such as the living room, baby room, bedroom, greenhouse, reptiles terrarium, equipment cabinet to monitor temperature and humidity remotely. Note:SNZB-01P to SNZB-04 must work with Sonoff Zigbee Bridge-P