Looks like blogspam, outbound links to each product include an affiliate ID commission link. I would recommend investigating zwave800 based combination human presence sensors (motion sensors) which also include temperature, humidity, light detection.
https://www.thesmartesthouse.com/collections/best-z-wave-sen...
Or just more basic human presence sensors
https://sonoff.tech/products/sonoff-zigbee-human-presence-se...