If I put this inside on the ground floor looking out through a window, will it work to detect movement outside?

No. PIR sensors will not work reliably through glass. Most likely not at all. The work in detecting changes in "Infra-red" heat energy. They do however communicate to the hub over distance as they are not using wifi but 868Mhz radio communications. I have the sensors fitted inside shipping containers and the radio transmission has no problem passing through the metal skin of the container. The sensor is there to detect the door opening. You could fit outside in your garden but they are not waterproof so will need protection against the elements and not be in direct sunlight. Ideal for alcoves.

Do these have a feature so if it doesn't see motion it can trigger lights to turn off?

You can create a routine in the Alexa app, where if the Motion Sensor detects no motion for a certain length of time, it turns a device on/off (plug, bulb etc). I have mine set to turn my heater off if it detects no motion for 1 hour. So, if I forget to turn my heater off when I go out, it will do so after an hour of nobody being at home :-)

Hello, can I use the kasa hub with the tapo motion sensor and tapo smart switch? Thanks

No, Kasa and Tapo are seperate apps and not compatible

Does this work with home assistant ?

Yes the sensor works with the Tapo Hub and the home assistant app. It's great to setup "Smart" automation routines. Sensor detects something and then you add actions such as sound alarm turn on a light or record camera footage.

Tapo T100 Smart Motion Sensor Motion Detectors Wide Range Detection

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Description

🚀 Elevate your space with motion-activated magic—never miss a moment!

PLUG PLAY SIMPLICITY - Quick setup with 3M adhesive or built-in magnets—no tools, no hassle.
STAY ALERT STAY SECURE - Real-time notifications keep you connected and in control, even when away.
WIDE ANGLE MOTION MASTERY - Detects movement up to 23 ft with a 120° field of view for seamless coverage.
EFFORTLESS SMART AUTOMATION - Triggers your Tapo devices instantly, creating a hands-free, energy-saving smart home.
VOICE ACTIVATED CONVENIENCE - Compatible with Alexa for hands-free command and ultimate smart home integration.

The Tapo T100 Smart Motion Sensor offers precise motion detection up to 23 feet with a wide 120° view, enabling instant automation of your smart devices. Battery-powered with up to 2 years of life, it delivers real-time alerts via the Tapo app and supports voice control through Alexa. Easy to install with adhesive or magnets, it requires the Tapo Hub for full smart functionality, making it a sleek, reliable addition to any connected home.

Specifications

ASIN	B0BC271ZWH
Battery Description	Lithium
Battery description	Lithium
Best Sellers Rank	878 in DIY & Tools ( See Top 100 in DIY & Tools ) 8 in Motion Detectors (DIY & Tools) 57 in Networking Devices
Brand	Tapo
Colour	White
Compatible Devices	Tapo Hub, Tapo Devices
Compatible devices	Tapo Hub, Tapo Devices
Control Method	Voice
Country of Origin	China
Customer Reviews	4.5 out of 5 stars 818 Reviews
EU Spare Part Availability Duration	2 Years
Included Components	3M Adhesive, Battery CR2450*1, Quick Start Guide, Smart Sensor Tapo T100
Item Type Name	Smart Motion Sensor
Item Weight	50 Grams
Manufacturer	TP-Link
Manufacturer Warranty Description	2 year manufacturer.
Maximum Range	7 Metres
Model Number	Tapo T100
Mounting Type	Wall Mount
Number of Batteries	1 Lithium Metal batteries required. (included)
Number of batteries	1 Lithium Metal batteries required. (included)
Part Number	Tapo T100
Power source	Battery Powered
Sensor Technology	Motion sensor
Size	Sensor
Smart Home Compatibility	Smart Home Compatible
Unit Count	1.0 count

Reviews

I**W

5.03.2026

D**A

29.03.2026

T**R

8.07.2024

N**E

22.02.2024

A**O

22.04.2026

N**L

18.01.2025

A**W

17.01.2026

D**S

22.09.2025

D**O

4.12.2024

P**W

26.03.2026

D**F

2.05.2025

S**I

13.03.2026

N**.

19.11.2025

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Sold byAmazon SpainDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Tapo T100 Smart Motion Sensor, Motion Detectors, Wide Range Detection, Instant Alerts, Hands-Free Motion-Activated Lighting, Energy Saving, Hub Required, Battery Included(Packaging may vary)

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