SAFE-TECH SM Interlink Heat Alarm with Tamper-Proof Battery

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Living and Home
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SAFE-TECH Interlinked Heat alarm is designed with safety in mind. It complies with BS EN 5446-2:2003, the British standard for heat alarms, and has been rigorously tested by TüV Rheinland to ensure it meets the highest safety standards.

Our Interlinked heat alarm features a state-of-the-art Thermistor sensor, which is highly sensitive and quickly detects even the slightest increase in temperature. The Thermistor sensor is an essential component of the alarm, allowing it to respond rapidly to potential fire hazards and provide an early warning to occupants.

The tamper-proof battery ensures that your alarm will always be ready to protect you in the event of a fire. The 10-year product life ensures that you won’t have to worry about replacing the alarm for a decade, giving you peace of mind.

In addition to meeting British standards, our interlinked heat alarm also complies with new Scottish legislation, making it a great choice for homeowners in Scotland. With its advanced safety features and long product life, our interlinked heat alarm is the perfect choice for anyone looking to protect their home and loved ones.


Power Source: Sealed 3.0V lithium battery(Built-in)
Battery Life:10 year
Product Life:10 year
Type of Sensor:Thermistor
Standby current:<30uA
Heat Sensitivity:?54~72℃
Alarm Current : <70mA
Working Temperature : -10℃~+50℃
Relative Humidity: ≤95%RH
Low battery alarm threshold : 2.6±0.1V
Alarm Sound pressure:?≥85dB at 3m
RF Distance:>25m
Alarm Mode: Siren with red led flash
Execute Criterion: BS5446-2:2003
Product Dimensions: 12 x 4.7 cm

Package Content

1 x SM-22HI Interlinked Heat Alarm with Mounting Bracket
Screws with Wall Plugs
User Manual
Quick Start Guide

* 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 SM Interlink Heat Alarm with Tamper-Proof Battery
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