SAFE TECH AJ-763 Bundle Wireless Interlinked Smoke and Heat Alarms, 4 Pack

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Product guide

SAFE TECH AJ-763 Bundle Wireless Interlinked Smoke and Heat Alarms, 4 Pack

Wireless Interlinked Pack: SAFE TECH AJ-763 Bundle is a battery-powered, pre-linked set of three smoke alarms and one heat alarm. Its four-unit configuration suits buyers seeking interconnected detection, with the manufacturer also claiming a 10-year sensor lifespan and compatibility with AJ-series alarms.

At a glance

The stated bundle configuration is three smoke alarms and one heat alarm, supplied factory pre-linked.
The manufacturer claims support for up to 50 devices using Mesh RF and compatibility with certain mains- and battery-powered SAFE-TECH alarm ranges.
The listing describes the heat alarm as suited to kitchens and warmer spaces, and the photoelectric smoke alarms for bedrooms, hallways and living areas.

Price

£67.99Save 15%

Reference price: ~~£79.99~~

Price checked: 12 Nov 2026

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Pros and cons

Pros

A four-alarm mixed set provides smoke and heat detection in one stated bundle.
Pre-linking is intended to avoid manual pairing during initial setup.
The manufacturer states a 10-year sensor lifespan and a 24-month warranty from purchase.

Technical specifications

15 specifications

Identity
Brand	SAFE TECH
Model	AJ-763 Bundle
Alarm types	Smoke and Heat Kit
Sensor type	Photoelectric

Power and battery
Power configuration	Battery Powered
Sensor lifespan claim	10 Years lifespan sensor

Interconnection and operation
Interconnection compatibility	Interconnects with all AJ series alarms
Alarm output	Audible
Operating humidity	≤95%
Upper temperature rating	50 Degrees Celsius

Dimensions and installation
Dimensions listed	5D x 12W x 12H centimetres
Weight listed	700 Grams

Materials and protection
Material listed	ABS
Standards stated in listing	BS EN 14604:2005 (Smoke), BS EN 5446-2:2003 (Heat)
Manufacturer warranty description	Manufacturer warranty for 24 months from date of purchase.

What to know before buying

The manufacturer describes a tamperproof, long-life battery but gives no battery-life duration in the supplied details. Its 10-year claim refers to sensor lifespan, not a stated battery runtime. Follow the instructions for installation, testing and regular cleaning, and check local requirements for alarm placement and configuration.

What’s in the box

Included

1 AJ-718i interlinked heat alarm
User manual
3 AJ-762i interlinked smoke alarms
Mounting screws

Who is it for?

A good fit for

Households looking for a pre-linked battery-powered smoke and heat alarm set.
Buyers wanting three smoke alarms plus one heat alarm and claiming interconnection with compatible AJ-series units.

Less suited to

Buyers who need a mains-powered alarm kit or confirmed phone notifications without separately checking compatible equipment.
Buyers who require a clearly specified battery runtime rather than the stated sensor lifespan.

SAFE TECH AJ-763 Bundle Wireless Interlinked Smoke and Heat Alarms, 4 Pack · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.5 / 5 · 500 ratings

5 stars69%69%
4 stars22%22%
3 stars4%4%
2 stars1%1%
1 star4%4%

Customer feedback highlights ease of installation, reliability, quality and perceived value, with positive comments also mentioning battery life and appearance. Connectivity and instructions receive mixed feedback, including reports of pairing difficulty and poor documentation. That matters for a kit whose listing promises factory pre-linking: buyers may value the simpler intended setup, but should be prepared to consult the guide or support if connection issues arise. Aggregate ratings are largely positive, though ratings alone do not explain individual experiences.

Positive themes

Customers report that the system is easy to install and reliable.
Feedback also praises perceived quality, value, battery life and appearance.

Mixed feedback

Connectivity receives mixed feedback, including reported pairing difficulties.
Instruction quality is mixed, with some finding the guidance acceptable and others reporting poor documentation.

Frequently asked questions

What alarms are listed in the AJ-763 Bundle?

The stated bundle contains three AJ-762i interlinked smoke alarms and one AJ-718i interlinked heat alarm.

Are the alarms paired before installation?

The manufacturer says the alarms are factory pre-linked, so manual pairing is not required for the supplied kit.

Does the 10-year claim mean the batteries last 10 years?

The supplied claim specifies a 10-year sensor lifespan. It does not provide a battery runtime, so do not treat it as a confirmed 10-year battery-life specification.

Can this set connect to other alarms?

The listing says it interconnects with all AJ-series alarms and separately claims compatibility with certain SAFE-TECH mains- and battery-powered ranges. Confirm compatibility for any specific alarm model before combining systems.