eufy Security E10 T90S0 Smoke Detector

The eufy Security E10 T90S0 is a battery-powered smoke detector designed to connect to a compatible eufy HomeBase. Its compact 70 mm diameter and claimed battery life of up to five years may suit buyers already using the supported hub, but it will not operate as a standalone detector according to the listing.

At a glance

Requires a compatible eufy HomeBase and the specified minimum software version. The listing says to update the hub to the latest version.
The manufacturer claims a 70 mm diameter and up to five years of operation from a CR123A battery.
Wireless range is claimed as up to 200 metres in an open environment, so real placement conditions may differ.
The listing describes a photoelectric two-beam sensor and claims detection of different smoke types.

Price

£49.99Save 38%

Reference price: ~~£79.99~~

Price checked: 14 Nov 2026

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Often bought together

eufy Entry Sensor E20, Dual-Side Detection, Convenient Bypass Button, Extended Battery Life, Long Communication Range, Requires a EU version of HomeBase 2, 3, Mini, or Pro

£19.99

eufy Key Fob E10, Quick Arm and Disarm, Weather Resistant and Durable, Long-Lasting Battery, Versatile Carrying Options, Requires a UK version of HomeBase 2, 3, Mini, or Pro

£16.99

Pros and cons

Pros

Small claimed 70 mm diameter may be less visually prominent than larger detectors.
Battery power and a claimed life of up to five years reduce the frequency of battery replacement if the claim applies in use.
Specified HomeBase models and minimum software versions make compatibility requirements clear.

Cons

Requires a compatible HomeBase, so it is not a standalone option according to the listing.

Technical specifications

15 specifications

Identity
Brand	eufy Security
Model	T90S0

Power and battery
Power configuration	Battery Powered

Dimensions and installation
Dimensions listed	8D x 5W x 8H centimetres
Weight listed	0.33 Pounds
Claimed diameter	70 mm (2.75 in)

Detection and connectivity
Alarm	Audible
Claimed battery life	up to 5 years
Battery type	CR123A
Listed standards	UL 217 10th edition
Listed standard in product description	EN14604

Compatibility
HomeBase Mini requirement	v4.0.5.2 or above
HomeBase 2 requirement	v3.4.1.2 or above, released after 2021
HomeBase 3 requirement	v3.7.2.6 or above
HomeBase Pro requirement	v4.1.4.3 or above

What to know before buying

Listing details to confirm

Listing details are inconsistent: the title calls the detector E10 and describes compatibility with an EU version of HomeBase, while the feature text lists supported models and software versions without specifying a regional version. It also cites UL 217 10th edition in one claim and EN14604 in the product description, and lists dimensions of 8D x 5W x 8H centimetres alongside a 70 mm diameter claim. Confirm the exact regional hub compatibility, applicable standard and physical dimensions for the selected listing before purchase. The five-year battery life and 200-metre open-air range are manufacturer claims, not guaranteed results.

What’s in the box

Included

Smoke detector sensor

Who is it for?

A good fit for

Existing eufy HomeBase owners whose hub model, regional version and software meet the stated requirements.
Buyers seeking a compact, battery-powered smoke detector and willing to check the listing’s inconsistent size and compatibility details.

Less suited to

Buyers who need a smoke detector that works without a HomeBase.
Buyers who require one clearly established set of dimensions, regional compatibility details or listed standards without checking further.

eufy Security E10 T90S0 Smoke Detector · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 73 ratings

5 stars80%80%
4 stars10%10%
3 stars4%4%
2 stars3%3%
1 star3%3%

There is no written customer-feedback summary to describe reported experiences. Aggregate ratings are mostly in the five-star category, with some lower ratings, but star distributions alone do not show what buyers liked or disliked. They cannot establish detection performance, HomeBase compatibility or battery life.

Frequently asked questions

Does the eufy E10 work without a HomeBase?

No. The listing says a compatible HomeBase is required, naming HomeBase Mini, HomeBase 2, HomeBase 3 and HomeBase Pro with minimum software versions.

How long does the battery last?

The manufacturer claims up to five years from a CR123A battery. Treat this as a stated claim rather than a guaranteed service life.

What is the detector’s size?

The listing claims a 70 mm diameter, but its dimensions field separately states 8D x 5W x 8H centimetres. Confirm the physical dimensions for the selected product listing.

Which safety standard does it meet?

The feature text claims UL 217 10th edition, while the product description states EN14604. The listing is inconsistent, so confirm which standard applies to the product being sold.