Haozee Human Presence Sensor,2.4 GHz Wi-Fi Required,Smart Mmwave Radar Presence Sensor with Light Switch,Auto-On/Auto-Off,No Hub Needed,for Home Security Home Automation

I’ve been using the Haozee Human Presence Sensor for a little while now, mainly to detect movement in and around my garage and front porch and run some automation based on that. Setup was ok since it connects directly over 2.4 GHz WiFi—no hub needed. I wish connecting to power was a little more straightforward. I had to cannibalize an extension cord and muck around with bare wire which makes it painful to install. However, once I got it running, I noticed right away that the mmWave radar is more sensitive than the old PIR sensors I used before. Even if I’m just standing still, the lights stay on, which is a big win. The detection angle is a bit narrower than I expected, especially if you mount it on the ceiling. Sometimes you have to be right in its path before it notices you, and there are little “dead spots” close to the unit where it won’t pick up presence at all. It also took some fiddling with sensitivity and light threshold settings before it felt reliable. I also ran into some confusion with compatibility—the description could be clearer. It works fine with Alexa and SmartLife. Overall, I’d give it about 4 stars. It does the job of saving energy and making my lights more convenient, but you need to be mindful of placement and settings. For the price, I think it’s decent value, but it won’t be flawless in every room.

While the mmWave radar technology in this sensor is quite sensitive and technically works as a presence detector, the physical design and safety considerations leave a lot to be desired for the average user. The Concerns: Unsafe Mounting Design: This sensor does not seem designed to mount to a standard US junction box. It is intended to be hung directly, which is a major concern when dealing with 110V wiring. Unless you are comfortable "messing about" with raw wires outside of a protected box, this feels like a safety hazard waiting to happen. Impractical Wiring: The only relatively safe way to use this would be to wire it directly to a cord and plug it into an outlet. However, doing so results in a major eyesore with cords hanging down your wall, often in locations that aren't optimal for the sensor to actually do its job. Limited Power Handling: It is restricted to supplying less than 2 amps. If your use case fits perfectly in-line with a low-draw cord, it might suffice, but for most home automation needs, it's far too restrictive. Poor Convenience: Compared to USB or battery-powered presence sensors, this model is unnecessarily difficult to integrate into a clean, safe smart home setup. Final Thoughts: If you aren't an electrician or someone very comfortable with custom wiring solutions, I would avoid this. The sensitivity of the radar doesn't make up for the lack of a safe, standard mounting solution. Stick to USB-powered mmWave sensors if you want the tech without the 110V headache.

So when I got this, it didn't explain anything about mounting options and looking at the listing right now it still doesn't. This is designed to be mounted directly to main power so it needs to be hardwired. OK, that's fine. However, this is designed to be mounted to some type of junction box and I've never seen a junction box with that particular screw pattern in it before. Another review were shown in the back of this and mentions it as well, but I don't think this would fit in any US standard electrical junction box. That being said if you wanted to be creative, you could come up with something if you wanted to. Because of that, I don't recommend this product at all.

I recently added the Smart Human Presence Sensor with light control to my fully automated smart home, and it has proven to be a good addition. This device effectively detects both human movement and stillness, ensuring that the lights turn on when someone is present and off when the room is empty, which really helps with energy savings. The radar technology is impressive, as it can pick up even the slightest movements, so the lights stay on while I'm reading or working without interruption. I love that it connects directly to Wi-Fi without needing a hub, allowing me to control the light switches and monitor presence through the TuyaSmart app. Installation was straightforward, and the embedded design fits nicely on the ceiling, providing a wide detection range of up to 6 meters. Plus, the rich parameter settings in the app let me customize light values and durations to suit my preferences. Overall, this sensor has enhanced my Home Assistant smart home experience, making it even more convenient and efficient.

The Haozee Human Presence Sensor works well. The mmWave radar does a better job at detecting subtle movements or lack of movements than the more common PIR. I highly suggest building a backer box for this device, though. As it's currently designed, this is not up to code for north america without being inside a box. I dont love AC wires being this exposed in a wall or ceiling.

This is a Tuya connected sensor, which makes it compatible with most smart home setups - including my home assistant smart home. It has alright features, and seems to perform the same as other similar devices. The setup is incredibly annoying though. Most other devices have multiple power modes, while this one needs to be hardwired into mains power. This makes it much harder to use in a rental property or other place where permanent mounting is less favorable.

Folks I never had a chance to really see how well this worked as when I attempted to wire it for power I fried it.... This thing takes 110volts and I tried to wire it with a test cord I have and the wiring block is made for small wires and apparently I didn't get one of the wires cleanly inserted and when I plugged it in, well that was it for this... So all I can say is be very, very careful when wiring this... The manufacturer would be well advised to modify the wiring block...

I'm not sure if other countries have safe ways to utilize something like this, but I can't find a convenient way to use this as it seems they have intended. It doesn't seem to be designed around mounting to a junction box, just hung directly. Since it seems the only safe way to use it would be to wire it to a cord directly and plug it in, and I'm not sure any easy way to use it in this manner that wouldn't be an eyesore with a cord hanging from the wall. I suppose, if you have a use case for this as a presence sensor that'd mount in line with a cord, where the cord is in a location where the sensor would actually be able to do its job while supplying less than 2 amps, it's fine. Seems to work well enough when used this way, and is pretty sensitive. Otherwise, everything else about this makes it a bad idea, stick to usb or battery powered devices if you don't want to mess about with junction boxes and 110v wires.