Eufy Security Motion Sensor - T8910C21
Security system with alarm, 100° field of view, 9 m range, 2-year battery life, adjustable sensitivity. Controls HomeBase monitoring devices; HomeBase is required. The 100° wide-angle range ensures reliable detection of movements up to 9 meters away—covering everything from the garage to the front door. The motion sensor can be individually adjusted, reducing false alarms triggered by pets or leaves in the wind, so you are only alerted at the right moment. As soon as motion is detected, you will receive an instant notification via the eufy Security app, whether you are at home or on the go. Connects with the eufy Security HomeBase as well as other eufy Security products. Simply connect via the eufy Security app and add the motion sensor with the push of a button.
Security system with alarm, 100° field of view, 9 m range, 2-year battery life, adjustable sensitivity. Controls HomeBase monitoring devices; HomeBase is required. The 100° wide-angle range ensures reliable detection of movements up to 9 meters away—covering everything from the garage to the front door. The motion sensor can be individually adjusted, reducing false alarms triggered by pets or leaves in the wind, so you are only alerted at the right moment. As soon as motion is detected, you will receive an instant notification via the eufy Security app, whether you are at home or on the go. Connects with the eufy Security HomeBase as well as other eufy Security products. Simply connect via the eufy Security app and add the motion sensor with the push of a button.
Security system with alarm, 100° field of view, 9 m range, 2-year battery life, adjustable sensitivity. Controls HomeBase monitoring devices; HomeBase is required. The 100° wide-angle range ensures reliable detection of movements up to 9 meters away—covering everything from the garage to the front door. The motion sensor can be individually adjusted, reducing false alarms triggered by pets or leaves in the wind, so you are only alerted at the right moment. As soon as motion is detected, you will receive an instant notification via the eufy Security app, whether you are at home or on the go. Connects with the eufy Security HomeBase as well as other eufy Security products. Simply connect via the eufy Security app and add the motion sensor with the push of a button.
Security system with alarm, 100° field of view, 9 m range, 2-year battery life, adjustable sensitivity. Controls HomeBase monitoring devices; HomeBase is required. The 100° wide-angle range ensures reliable detection of movements up to 9 meters away—covering everything from the garage to the front door. The motion sensor can be individually adjusted, reducing false alarms triggered by pets or leaves in the wind, so you are only alerted at the right moment. As soon as motion is detected, you will receive an instant notification via the eufy Security app, whether you are at home or on the go. Connects with the eufy Security HomeBase as well as other eufy Security products. Simply connect via the eufy Security app and add the motion sensor with the push of a button.
in 11 offers
The lowest price for Eufy Security Motion Sensor - T8910C21 right now is $38.00 at Bunnings Warehouse, compared across 10 retailers.
The all-time low was $32.29 on 30 Dec 2025 — today's price is 18% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 10 June 2026.
Last updated at 10/06/2026 16:13:10
Eufy Security Motion Sensor - Add On
Free next-day delivery
eufy Security Motion Sensor (Add On)
Delivery $6.99
EUFY MOTION SENSOR
Delivery $9.95
EUFY MOTION SENSOR Security Home Alarm System with 100° Coverage, 30 ft Range, 2-Year Battery Life and Adjustable Sensitivity for Home Security
eufy Security Motion Sensor T8910C21 - White
Free next-day delivery
eufy Security Motion Sensor T8910C21 - White
Delivery between 16–24 June $7.80
Eufy Security Motion Sensor
Delivery $15
Eufy T8910C21 Motion Sensor
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Security Wireless Indoor Motion Sensor - Smart Home Alarm System With
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Eufy Wireless Motion Sensor, Add On - T8910C21
Delivery between 15–18 June $9.99
originally posted on pbtech.co.nz
So far we are very happy with our purchase and it works well with all the other Eufy things we have installed. motion sensor light is a little bright when dark and trying to sleep if you accidentally set it off by moving in your sleep. but in all a good little sensor.
originally posted on pbtech.co.nz
This is a neat little motion sensor you can put anywhere your WIFI reaches. It is battery powered so it doesn't need any wired power. It needs a Eufy Hub to talk to (via WIfi). Set up is very simple. Go into the app on your phone and follow some obvious instructions. Voice prompts from the Eufy Hub at bit, but I found them unecessary. After that you get alerts on your phone if the sensor is triggered. We put ours indoors and they com on to a schedule so were not getting alarms while we're just hanging out at home. We have cameras outdoors which work the same way except w video. Nice system.
originally posted on pbtech.co.nz
Bought this for our garage since we are already using Eufy for the whole house. Works well and detects motion accurately. It does not alert you if your pet is within proximity which is ideal!
| Power Source | Battery Powered |
| Number Of Pieces | 1 |
| Included Components | 1 x Eufy Security Motion Sensor |
| Country of origin | USA |
| Maximum range | 30 Feet |
Eufy Security Motion Sensor - Add On
Free next-day delivery
eufy Security Motion Sensor (Add On)
Delivery $6.99
EUFY MOTION SENSOR
Delivery $9.95
EUFY MOTION SENSOR Security Home Alarm System with 100° Coverage, 30 ft Range, 2-Year Battery Life and Adjustable Sensitivity for Home Security
eufy Security Motion Sensor T8910C21 - White
Free next-day delivery
So far we are very happy with our purchase and it works well with all the other Eufy things we have installed. motion sensor light is a little bright when dark and trying to sleep if you accidentally set it off by moving in your sleep. but in all a good little sensor.
This is a neat little motion sensor you can put anywhere your WIFI reaches. It is battery powered so it doesn't need any wired power. It needs a Eufy Hub to talk to (via WIfi). Set up is very simple. Go into the app on your phone and follow some obvious instructions. Voice prompts from the Eufy Hub at bit, but I found them unecessary. After that you get alerts on your phone if the sensor is triggered. We put ours indoors and they com on to a schedule so were not getting alarms while we're just hanging out at home. We have cameras outdoors which work the same way except w video. Nice system.
Bought this for our garage since we are already using Eufy for the whole house. Works well and detects motion accurately. It does not alert you if your pet is within proximity which is ideal!
Eufy best home security systems . Sensors , detectors , high end cameras do exactly as stated . Any other brand battery camera's fail in 12 Months . Eufy i have only needed to charge camera's once in over 12 months , always works , no disconnects from wifi , but i do have the base station and wifi on a ups. Even the bathroom scales are great .
Its very easy to setup. Included 3m tapes makes it easy to install in tricky locations. Only downside is traditional motion sensors' detection pattern is conical, whereas this has a disk like detection pattern. Make sure to install in the right location so that you can capture the motion.
Easy to install and operate. Works a treat in helping to secure your property. Comes with mounting kit and long life (claims 2 years) battery.
The eufy wireless motion sensor works great and the battery lasts for ages. Please note this is an add on and you need an eufy home base and wireless alarm kit to use the product. The best thing about eufy is there is no subscription fees
Easy setup. Battery operated. Range is adjustable in the Eufy application. Notifications sent instantly back to phone.
I might be paranoid but sometimes when my indoor eufy cameras would go down for 10 or 15 minutes for reasons unknown then miraculously all turn on again (I have an indoor UPS) I've got to wonder why. I do have a large dog flap in my back yard door but don't own a dog, only a cat (which by the way cant trigger the motion sensors because he's too small). & yet my motion sensors have often been coincidentally triggered indoor during these camera outage times. It's important your router is secure, otherwise it's all for naught. (Turn off WPS, Ups, broadcasting SSID, rename your default SSID & password etc, google it). It was only my silly amount of motion sensors in at least one corner of every room in my house that I realised my network had been compromised & open to ... MoreI might be paranoid but sometimes when my indoor eufy cameras would go down for 10 or 15 minutes for reasons unknown then miraculously all turn on again (I have an indoor UPS) I've got to wonder why. I do have a large dog flap in my back yard door but don't own a dog, only a cat (which by the way cant trigger the motion sensors because he's too small). & yet my motion sensors have often been coincidentally triggered indoor during these camera outage times. It's important your router is secure, otherwise it's all for naught. (Turn off WPS, Ups, broadcasting SSID, rename your default SSID & password etc, google it). It was only my silly amount of motion sensors in at least one corner of every room in my house that I realised my network had been compromised & open to everyone who could then knock out my cameras. Stuff would keep going missing. Old blue eyed blinky boy in the ceiling corner didn't miss a thing though & sounded the alarm. The cameras are only as good as your routers security (which I have now learned). Eufys motion sensors, even if robbers get into your house by disabling your cameras, can't move a muscle inside without triggering them & there's nothing they can do about it. Highly effective, cheap and highly recommended to my mind
| Power Source | Battery Powered |
| Number Of Pieces | 1 |
| Included Components | 1 x Eufy Security Motion Sensor |
| Country of origin | USA |
| Maximum range | 30 Feet |
