Product reviews:

• Nous E6 - Smart ZigBee LCD Temperature and Humidity Sensor
  Cool little Zigbee temperature and humidity sensor with display, working on rechargeable 2xAAA batteries.
• Sonoff ZBDongle-E - Zigbee 3.0 USB Dongle Plus
  Quite powerful Zigbee USB stick with an external antenna. By default a coordinator. Can be flashed as a router.

How to pages:

• Automatically turn ON and OFF a touch monitor - Via DDC/CI protocol, based on activity in X11 using XSS lib, on Raspberry Pi 5
  Guide on how to setup automatic on and off of a touch screen for power saving, without a blue screen on a loss of HDMI signal.
• Flash Sonoff ZBDongle-E as router under NixOS
  Sonoff ZBDongle-E is quite powerful Zigbee dongle. By default, it's loaded with coordinator firmware. This how to article contains steps cheatsheet to flash it with router firmware under NixOS.

Product combos:

• Sonoff ZBDongle-E on APC SurgeArrest PM1WU2-FR