Is this smoke detector os coming with battery?

They advertise it as having a 10 year fixed unit battery, so you can't replace it without replacing the unit. My experience of them so far is that you can expect no more than 3 years before the low battery starts and you have to replace. With 7 years 'left' on it's replace by end date. Selling a unit as 10 years when it is 3 is disingenuous and I will not be buying Fireangel again.

Can ceiling mount for earlier model be used? Mine was installed a few years ago, so I think new models are same size.old one is ST620

I have the SI-610 and was told when I phoned up this new one would fit in the same mount

Does this product detect carbon monoxide?

No - it is a fire and smoke alarm designed to detect house fires.

Will this attach to the base of my existing ST-620 without me having to remove that as well?

This unit is compatible with an ST-620 base plate.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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ST-622T Thermoptek Smoke Alarm – 10 Year Sealed Lithium Battery, Multi-Sensor Optical Detection, Easy Install, Standalone FireAngel Smoke Alarm for Home

Product ID: 48844174

Details

Alarm
Visual
Brand
FireAngel
Colour
White
Global Trade Identification Number
Item weight
155 Grams
Power source
Battery

🔋10-year sealed lithium battery

🔥Thermoptek multi-sensor detection

🛠️Easy, drill-free installation

¥7654

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

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Description

🔥 Stay safe, stay smart — the smoke alarm that works as hard as you do! 🔋

DECADE LONG POWER - Forget battery swaps with a 10-year sealed lithium cell—set it and forget it.
HASSLE FREE SETUP - Automatic battery engagement and lightweight design make installation a breeze—no pro needed.
SILENT SMART SILENCE - Mute nuisance alarms for 10 minutes without compromising your home’s safety monitoring.
BUILT TO LAST PERFORM - Dust compensation and bug mesh reduce false alarms, ensuring reliable protection year-round.
SMART MULTI SENSOR TECH - Thermoptek optical + thermal sensors detect fires faster and cut false alarms.

The FireAngel ST-622T Thermoptek Smoke Alarm combines patented multi-sensor optical and thermal detection technology with a 10-year sealed lithium battery for long-lasting, reliable fire protection. Designed for easy installation with automatic battery engagement and features like a large central test/silence button, it minimizes false alarms while maximizing peace of mind. Lightweight and compact, it’s the perfect standalone smoke alarm for modern homes seeking fuss-free, durable safety.

Specifications

ASIN	B00XL4A8TA
Alarm	Visual
Best Sellers Rank	1,307 in DIY & Tools ( See Top 100 in DIY & Tools ) 12 in Smoke Alarms
Brand	FireAngel
Colour	White
Customer Reviews	4.5 4.5 out of 5 stars (5,471)
Global Trade Identification Number	00816317002275
Included Components	1x Smoke Alarm + Base Plate, 2x Screws, 2x Rawl Plugs, 1x Instruction Manual
Item Dimensions D x W x H	3.3D x 12.9W x 12.9H centimetres
Item Part Number	ST-622T
Item Type Name	10 Year Thermally Enhanced Optical Smoke Alarm
Item Weight	155 Grams
Manufacturer	FireAngel Safety Technology Ltd
Model Number	ST-622T
Number of Items	1
Part Number	ST-622T
Power source	Battery Powered
Product Style	ST-622
Sensor Type	Photoelectric
UPC	816317002275
Unit Count	1.0 count
Upper Temperature Rating	1 Degrees Celsius

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¥7654

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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