Deta Heat Alarm 240V with 10 Year Sealed Lithium Battery Backup | 1166

Mains Powered Heat Alarm with 10-Year Battery Backup

The Deta 1166 Heat Alarm is a 240V mains-powered heat alarm with a sealed 10-year lithium battery backup, designed for reliable fire detection in areas where smoke, fumes or dust could cause nuisance alarms with conventional smoke detectors.

Suitable for D1 fire safety systems, the alarm is particularly suited to rented properties and houses in multiple occupation (HMOs). Its heat detection makes it ideal for locations such as kitchens, garages and attics where environmental conditions may make a smoke alarm unsuitable.

The Deta 1166 can be interlinked with up to 12 compatible optical, heat and carbon monoxide alarms in total, allowing an alarm activation in one area to provide a warning throughout the property.

Features

• 240V Mains Powered Heat Alarm
• 10-Year Sealed Lithium Battery Backup
• Suitable for D1 Fire Safety Systems
• Ideal for Rented & Multiple Occupancy Properties
• Suitable for Kitchens, Attics & Garages
• Designed for Areas Where Fumes or Dust May Cause Nuisance Alarms
• Interlinkable with Compatible Deta Alarms
• Supports Up to 12 Interlinked Alarms in Total
• Compatible with Optical, Heat & Carbon Monoxide Alarms
• 85dB Alarm Sound Output at 1 Metre
• Test / Silence Button
• LED Operating Indicators
• Low Battery Warning
• Maximum Power Consumption of 9W
• Two-Part Alarm & Mounting Base Assembly
• Easy-Fix Universal Mounting Base
• Large Wiring Space
• Integrated Foam Gasket Helps Prevent Dust Ingress
• Fly Lead Connection
• Push-Fit Alarm Head Installation
• High-Visibility Dust Cover Included
• 5-Year Guarantee

Ideal for Kitchens, Garages & Attics

Heat alarms are particularly useful in areas where smoke detectors may be susceptible to nuisance activation from everyday fumes, steam or dust.

The Deta 1166 is therefore well suited to kitchens, garages, attics and similar locations, providing heat detection while reducing the potential for unwanted alarms caused by environmental conditions.

D1 Fire Safety System Suitable

The suitability and positioning of individual alarms should always be determined according to the applicable fire safety requirements for the property.

10-Year Sealed Lithium Battery Backup

The alarm incorporates a sealed lithium backup battery with a 10-year life, providing standby power if the mains electrical supply is interrupted.

Because the battery is sealed within the unit, routine user battery replacement is eliminated. A low battery warning provides an indication when attention is required.

Interlink Up to 12 Alarms

For larger properties, the Deta 1166 can form part of an interconnected alarm system containing up to 12 compatible alarms in total.

Compatible optical smoke, heat and carbon monoxide alarms can be interconnected, helping provide warning across different areas of the property when an alarm is activated.

Easy Two-Part Installation

The alarm features a practical two-part assembly, allowing the universal mounting base to be fitted during second-fix electrical work while the alarm head can be installed later after decorating and other building work has been completed.

A large wiring area provides additional working space, while the alarm head connects using a fly lead connection before simply push-fitting into the mounting base.

Dust Protection During Installation

The universal mounting base incorporates a foam gasket designed to help prevent dust ingress.

A high-visibility dust cover is also supplied to protect the alarm head from contamination during decorating and building work.

These features make the unit particularly practical for new-build, refurbishment and property-development installations.

• Brand: Deta
• Product Code: 1166
• Product Type: Heat Alarm
• Power Supply: 240V Mains
• Battery Backup: Sealed Lithium
• Battery Life: 10 Years
• System Grade/Application: D1
• Alarm Sound Output: 85dB at 1m
• Maximum Power Consumption: 9W
• Interlinkable: Yes
• Maximum Interlinked Alarms: 12 in Total
• Compatible Interlinked Alarm Types: Optical, Heat & Carbon Monoxide
• Test / Silence Button: Yes
• LED Operating Indicators: Yes
• Low Battery Warning: Yes
• Mounting: Universal Mounting Base
• Installation Design: Two-Part Assembly
• Fly Lead Connection: Yes
• Foam Dust Gasket: Yes
• Dust Cover Included: Yes
• Guarantee: 5 Years

Suitable Applications

• Kitchens
• Garages
• Attics
• Rented Properties
• Houses in Multiple Occupation (HMOs)
• Residential Properties
• New-Build Developments
• Property Refurbishments
• Areas Prone to Cooking Fumes
• Areas Where Dust Could Cause Nuisance Smoke Alarms
• D1 Fire Alarm Systems

Why Choose the Deta 1166?

The Deta 1166 combines 240V mains operation with a sealed 10-year lithium backup battery, providing a low-maintenance heat alarm solution for residential fire safety installations.

Its ability to interlink with up to 12 compatible alarms, together with its installer-friendly two-part construction, universal mounting base and supplied dust protection, makes it particularly suitable for professional installations in rented properties, HMOs and larger homes