Wireless PIR Motion Sensor Alarm: WiFi Motion Detector Alarm with 100dB Siren, TUYA APP Control, Sound & Light Alarm, Infrared Alarm Detector with USB Charge, Compatible with Alexa

(6 customer reviews)
Power SourceBattery Powered
Item Weight3.52 Ounces
Maximum Range40 Feet
Mounting TypeFlat placement / wall fixing
  • SOUND LIGHT ALARM & APP ALERTS: Wifi motion sensor alarm , ‘Tuya Smart’/’Smart Life’ APP control, No hub required. When it detects any movement, the wifi motion sensor will activate 100dB sound, and it will send you an alert through App at the same time. Our wifi motion sensor alarm also compatible with Alexa.
  • FOUR ARMING MODES & ACCURATE ALARM : The wireless motion detector has 4 modes(Sound and light/silent/no light/secret mode), According to your daily needs, choose your favorite arming mode. Motion detectors provides an added level of security and safety to your property. And because of the smart design, it can prevent false alarms or under report from pets under 25KG.
  • TIMING DISARMING AND ARMING: Wifi PIR motion detector alarm features a 90°detection and 360°flip design, the detection range up to 40 ft. It also has the timing function, You can set the time according to your needs, DIY your home security systems.
  • EASY INSTALLATION & TWO CHARGING METHODS: The wifi smart motion sensor support multiple installation methods such as flat placement and wall fixing. The motion sensor alarm indoor is powered by 2*AAA battery(not included) or USB cable (included).Note: If the alarm is triggered frequently in your installation place, the battery will run out quickly, so we recommend to use the 5V usb adapter to supply power.
  • WORRY-FREE AFTER-SALES:You will enjoy our professional return, exchange and warranty from the day you receive the wifi smart trigger. We offer an industry-leading 2-year warranty. If you have any questions about Tuya smart motion sensor, Please feel free to reach us directly at any time.You will be support 7*24 hours by our service team.
SKU: B09481RJB5 Category:
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Features and specification

Brand Smart devices brand

Integration Supported smart home integration

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Interface Smart device connectivity interface

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Manufacturer Smart device manufacturer

Country of Origin

Color Available colors

Item Package Quantity


Special Features


Batteries Included?

Batteries Required?

Batteries Type of batteries used

Power Source

Mounting Type

Item Weight

Maximum Range

Frequently asked question

Easy to install?

Yes, i place it on table. You can also install it on the wall with the attached screws.

Can I use this for a mailbox sensor when mail is put into my mailbox ?

If all you need to know is when the status of opened or closed changes, yeah it should work for that. But make sure the WIFI signal is strong enough.

Do you need to pay a fee?

No, Tuya App/Smart Life APP is free to use.

Can i disable the sound and light And only get notifications?

yes, there are 4 modes. you can choose the secret mode.

6 reviews for Wireless PIR Motion Sensor Alarm: WiFi Motion Detector Alarm with 100dB Siren, TUYA APP Control, Sound & Light Alarm, Infrared Alarm Detector with USB Charge, Compatible with Alexa


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  • Anonymous

    Works but no volume control on the app

    The instructions were a little off on the paper that came with the product but my biggest issue was that I am using it in an apartment and its a little loud , I guess that’s the whole point of this thing right lol, but I would have loved a volume control option in the mobile app.

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  • Anonymous

    Very happy with this purchase

    Great product! Setup was super easy in the Tuya app and Alexa recognized it on my network automatically, which is nice for voice control. It has an adjustable alarm time up to 255 seconds, and the alarm is quite loud. The motion sensitivity is also pretty good. I’m using it to detect motion in a large area and multiple entry points to the home. The app sends a push notification so are are instantly aware that the alarm has triggered if you are away from home. A very cost effective addition to my home security system. If you have access to AC power close to where you want to install it, I would say get this device because the batteries used are only 2 AAA primary cells, so I can’t Imagine that you would get decent battery life if that’s your intended use. However it’s good to have these installed as temporary backup for power outages. I also like the flexibility in the alarm modes (4 modes). You can even set up a “secret mode” to alert you that motion has been detected without actually sounding the alarm itself, just sending out the push notification with an alarm sounding on the phone app so you don’t miss it. The USB C power cable that comes with the device is extremely short (2 ft) so I had to use another one I had laying around. You also need to supply your own USB wall adapter. This would be the only negatives I can see to this product.

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  • Anonymous

    App notification is EXTREMELY loud and there's no way to mute it.

    I setup the sensor easily with Smart Life. It allows you to have ‘muted’ detection where the unit itself remains silent, however, there’s no way to receive silent smart phone notifications without a blaring alarm sound emitting from my phone. If there was a way to receive silent phone notifications, this would be perfect.
    You can silence your phone, but then all other notifs on the phone are silenced as well.

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  • Anonymous

    Works well when plugged in

    This motion sensor works well when plugged in. On battery power it doesn’t last long. I’m using it with the Feit app. This would also work with Tuya or Smart Life apps.

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  • Anonymous

    This doesn't work with Alexa

    I have no idea why it would say a works with Alexa and its clearly don’t.

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  • Anonymous

    Very simple and easy to use less than two minutes to install.

    Well worth it was looking for something as a deterrent is someone breaks in and sounds to scare them off. Works great with the app smart life. Sends you notifications to your phone and is on point. Highly recommend.

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