1 / 7SAFE TECH AJ-762I Wireless Interlinked Smoke Alarm
SAFE TECH AJ-762I is a battery-powered smoke alarm that the listing describes as wirelessly interlinked with compatible alarms. Its photoelectric sensor and claimed 10-year sensor life suit buyers adding a smoke alarm to a compatible SAFE-TECH system.
At a glance
- The listing claims a built-in RF mesh interlink network supporting up to 50 alarms, with connected units activating together when one detects smoke.
- A photoelectric sensor is listed, and the manufacturer claims a 10-year sensor life.
- The alarm is battery-powered. Listing text describes a sealed battery with up to 10 years of operation.
- The manufacturer claims compatibility with SAFE-TECH battery and 230V mains-powered smoke, heat and multi-sensor alarms.
Reference price: £28.99
Price checked: 12 Nov 2026
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Pros and cons
Pros
- Wireless interlinking can extend an alarm signal across compatible units rather than relying on one alarm sounding alone.
- Battery power avoids wiring this alarm into the household mains, according to the listing.
- A stated sensor life of 10 years may reduce sensor replacement frequency, subject to the manufacturer’s claim.
Technical specifications
11 specifications| Brand | SAFE TECH |
|---|---|
| Model | AJ-762I |
| Power configuration | Battery Powered |
|---|---|
| Sensor type | Photoelectric |
| Alarm | Audible |
| Upper temperature rating | 50 Degrees Celsius |
| Compatible devices | CO detector, Remote controller, WiFi interconnected smoke alarm |
|---|
| Dimensions listed | 10.8D x 10.8W x 3.7H centimetres |
|---|---|
| Weight listed | 175 Grams |
| Material listed | ABS |
|---|---|
| Colour | White |
What to know before buying
Listing details to confirm
The listing claims EN 14604 compliance and suitability for Scotland, Northern Ireland and England, but also says mains-powered interlinked alarms are required for Wales. Check the applicable local requirements and your existing alarm system before buying. The 10-year claim refers to sensor life in some text and whole-alarm or battery protection in other text, while the details describe the unit simply as battery-powered and do not confirm the sealed-battery specification. The product title gives model AJ-762I but the part number is AJ-762. Compatibility and the claimed mesh capacity are manufacturer statements, not independently verified here.
What’s in the box
Included- Batteries
- Mounting screws
Who is it for?
A good fit for
- Households looking to add one battery-powered smoke alarm to a compatible SAFE-TECH interlinked setup.
- Buyers seeking a photoelectric smoke alarm for a landing, hallway, bedroom, living room or loft, as suggested by the listing.
Less suited to
- Buyers who need a mains-powered alarm for a specific local requirement, especially in Wales, without first confirming which alarm configuration is required.
- People needing a confirmed compatibility match with a non-SAFE-TECH system or seeking a clearly specified sealed-battery configuration.
Customer reviews on Amazon
- 5 stars
66% 66% - 4 stars
34% 34% - 3 stars
0% 0% - 2 stars
0% 0% - 1 star
0% 0%
Aggregate customer ratings lean positive, with ratings confined to the four- and five-star categories in the supplied distribution. They do not explain what customers liked or disliked, so they cannot establish how well the interlinking, sensor or battery claims perform in practice.
Frequently asked questions
Can this alarm interlink with other alarms?
The manufacturer says its RF mesh system can connect up to 50 alarms and lists compatibility with SAFE-TECH battery and mains-powered smoke, heat and multi-sensor alarms. Confirm compatibility with your particular units before purchase.
Is it battery-powered or mains-powered?
The product details list it as battery-powered. The manufacturer also claims compatibility with certain mains-powered SAFE-TECH alarms, which does not make this unit itself mains-powered.
Does the listing confirm a 10-year battery life?
Not consistently. It claims a sealed battery lasting up to 10 years in feature text, but the technical details only say battery-powered and other copy describes 10 years as sensor life. Confirm the battery specification for the selected listing.
Is it suitable for use in Wales?
The listing says mains-powered interlinked alarms are required for Wales, while describing this model as battery-powered. Check current local requirements before choosing an alarm.
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