Last week, SONOFF released a new zigbee sensor SNZB-06P. Finally, The Human presence sensor is coming!!
This sensor can detect human presence, even if you’re completely still. It’s especially handy when you’re reading in your office or taking a shower in the bathroom, ensuring that the lights won’t inadvertently switch off. This is in stark contrast to traditional PIR (Passive Infrared) sensors, which only detect motion based on changes in infrared radiation. If you’re stationary, the PIR sensor assumes you’ve left and turns off the lights.
The best part? It is incredibly affordable, priced at just $15. This is quite a steal, considering that other presence sensors on the market often come with much higher price tags.
BUT at the same time, I noticed there are some limitations…
It detects all the movements, like pets, moving curtains, and sweeping robots…
The light sensor within the SNZB-06P can only judge between light and dark conditions on the eWeLink app. I believe this is a design that imitates some motion lights, which only light up at night.
Minimum Detection timeout can only be 1 minute, which means that you need to wait for 1 minute to turn off the lights after you’re leaving. Actually, this sensitivity is a bit low. I can see from Mat’s video that Sonoff is optimizing it.(https://www.youtube.com/watch?v=m66Mv_azIDk) Perhaps we will get a firmware upgrade in the future??? Hope so.
It does not provide location information, possibly because it uses a 5.8GHZ low-frequency radar, The accuracy of the radar is not suitable for precise distance or position analysis.
On balance, it’s more than enough to replace PIR for me. At least my bathroom light won’t turn off on its own anymore : )