X‑Sense HS21 Smoke and Heat Alarm Bundle
Product description
This X‑Sense bundle combines a heat alarm and two smoke alarms to give reliable, wired‑free protection around the home. It suits busy households that need a kitchen‑safe heat alarm alongside photoelectric smoke detection, and the sealed 10‑year lithium batteries mean less maintenance and continuous coverage.
Key points

The pack includes one heat alarm and two smoke alarms that are already linked in the multi‑pack, offering coordinated warnings across rooms. The smoke units use a photoelectric sensor for prompt detection of smouldering fires, while the heat alarm reacts to rapid temperature rises between 54°C and 65°C according to the manufacturer. Wireless interconnection via the Link+ series ensures all units alarm together, which helps alert everyone quickly in larger homes. 🔔


Technical details

- Name: X‑Sense HS21 Wireless Interlinked Smoke Alarms and Heat Alarm Scotland Bundle
- What’s included: 1 Heat Alarm, 2 Smoke Alarms, 3 Mounting Brackets, 6 Screws, 6 Anchor Plugs, 3 CR123A Batteries, 1 User Manual
- Battery life: Sealed 10‑year lithium battery
- Type: Photoelectric smoke alarm and NTC thermistor heat alarm
- Standards: EN 14604 and BS 5446 compliant
Why it’s worth it



Installation is straightforward and the corrosion resistant, flame retardant casing adds a degree of longevity. The sealed batteries remove the need for regular replacements and reduce false alarms from everyday cooking or dust in the kitchen area. There is a practical balance between low upkeep and audible safety, according to the product details.
Everyday use

It suits households wanting linked protection without hardwiring, offering peace of mind when asleep or away. It may not suit installations that require mains‑powered interconnected systems or where specific hardwired interlinking is a regulatory requirement, depending on local standards.
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