SAFE-TECH Smoke and Carbon Monoxide Alarm with 10 Year Tamper-Proof Battery

2 sold in last 8 hours
Living and Home
118 In stock
Smoke & Carbon Monoxide Detectors
There are currently less than 5 items in stock.
Order today to guarantee delivery within 3-7 working days.
customers are viewing this product


  • 2 in 1 Smoke and CODetection
  • 10 yeartamper proof battery life
  • Low Battery Warning
  • Easy Installation
  • Loud 85db Buzzerwith Flash

2 In 1 Combination Smoke and Carbon Monoxide alarm, can detect both smoke and carbon monoxide, it combines smoke and carbon monoxide dual sensors in one detector, which will reduce the cost.

Also with DC 3V built-in lithium battery with 10 years battery life, not hard-wired or mains powered detector, convenient to install, save the battery cost.

Large test button for easy recommended monthly testing, when you want to test the device, no need to take it off, just need a rod or a stick to press it.

Low battery warning.

10 Year Product End-of-Service Life Warning.

Figaro CO sensor from Japan, which lasts for 10 years.

ETL certification with UL 217/UL 2034 test standard


Power Source: Sealed 3.0 V CR123A lithium battery (non-replaceable)

Battery Life: 10 Years

Product Life: 10 Years

Type of Sensor: Smoke: Photoelectric; CO: Electrochemical

Standby Current: 8.2uA

Alarm Current: £¼60mA

Sound level: 85dB

Alarm mode: Siren with flash(Buzzer Red LED)

Low battery threshold: 2.5¡À0.1V

Detect: Smoke and Carbon Monoxide

CO Alarm concentration:

  • 70ppm:60~240min
  • 150ppm:10~50min
  • 400ppm:4~15min

Execute Criterion: UL217/UL2034, EN14604:2005/AC2008, EN 50291-1:2018

Product Dimensions/Weights: 13.1 x 3.6 cm; 5.16 x 1.42 inch, 280 Grams

Package Content

1 x AJ-933 Smoke Carbon Monoxide Alarm
1 x 3.0 V CR123A lithium battery3V Lithium Battery(built-in)
1 x Wall Mounting Bracket
2 x Screws with Wall Plugs
1 x User Manual

* Battery life may vary based on the configuration, application usage, power management settings and features utilized.
* We try to get you the best quality photo and size. However, all pictures shown here are for illustration purposes only. Actual product size and colour may vary slightly.

Shipping Policy

We are able to UK wide shipping options through long term partnerships with UPS, Yodel, Parcel Force, DPD, FedEx, DHL and other leading UK carriers. Professional warehouse personnel will take good care of your orders by making sure they are packed in accordance with our rigorous and exacting standards. Your products will be carefully checked and securely packed before shipping out. Every day, we ship to thousands of customers of UK; this reflects our commitment as a leading UK online retail company.

* Please note that shipping is not supported in Jersey and the following postal code areas: JE.

* There is an additional delivery surcharge to the following areas:

Scottish Highlands, Scottish Offshore Islands, N.Ireland, Channel Islands, Isle Of Wight, Isle Of Man and the following postal code areas: BT, FK, KA (1-26, 29, 30), PA (1-19), PH, AB, IV, KW (1-14), PH (19-40, 49, 50).

Please kindly contact us before ordering from these areas or we will send you a message about surcharge after your order.

* Orders are dispatched within 24 hours on the next working days.

* A cancellation fee will apply, if you wish to cancel after dispatch.

* Please Note: orders with multiple products or if a product comes multiply parts may get delivered on separate days.

Returns Policy

At Living and Home we want you to be satisfied with your purchase. Therefore we offer a 30 day return policy on all products.

If the item is faulty or you have received an incorrect item, we will not charge you for the return costs. (We require proof for faulty or incorrect items e.g photos or videos)

However if you have received the item and change your mind or cancel the order after delivery, you will need to pay the return costs. The return cost is dependent on your item value(s).

Product(s) Total Value Return Cost
£0 – £74.99 £40*
£75 - £149.99 £50*
£150 or more £60* or more

* or alternatively you can return through your own preferred carrier

* all returns must be made within their original packaging

* the return fee is per item, each additional item for collection is £15

* a return fee will still be charged if the carrier collection is missed

To return please email

Refunds (if applicable)

Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund. If your refund is approved, then it will be processed to your original payment method within 5-7 working days.

Can I change my existing order?

Once you have placed an order, unfortunately you won’t be able to make any changes to your products, but if you require delivery or contact detail changes, please email

SAFE-TECH Smoke and Carbon Monoxide Alarm with 10 Year Tamper-Proof Battery
You have successfully subscribed!
This email has been registered