SONOFF ZB Dongle-E USB Dongle Plus Zigbee 3.0 Wireless Smart Gateway Analyzer ZHA Zigbee2MQTT USB Stick Capture With Antenna Description: 1.SONOFF SNZB-01Zigbee Wireless Switch is a mini and exquisite ZigBee wireless smart switch replying on SONOFF ZigBee Bridge that allows you to reach the purpose of scene linkages between ZigBee devices (SONOFF BASICZBR3 DIY smart switch and S31 Lite zb smart plug) and Wi-Fi devices. 2.SONOFF SNZB-02is a ZigBee temperature and humidity sensor that can seamlessly work with SONOFF ZigBee Bridge to track and record the temperature and humidity change in your home, which all real-time readings can be checked on eWeLink APP.