Deta Optical Smoke Alarm 240V with 10 Year Sealed Lithium Battery Back Up | 1164

The Deta 1164 Optical Smoke Alarm is a high-performance mains-powered fire alarm with a 10-year sealed lithium battery backup, designed to meet the latest safety standards for residential and rental properties. Ideal for D1 fire safety systems, this alarm provides reliable smoke detection in circulation areas and habitable rooms, making it perfect for hallways, landings, bedrooms, and living spaces in both single and multiple occupancy dwellings.

The sealed 10-year lithium battery ensures continuous protection even during power cuts, while the low battery warning and LED status indicators offer clear visual feedback. The test and silence button allows easy operation and quick reassurance that your alarm is working properly.

Featuring interlink functionality, the Deta 1164 can connect with up to 12 compatible alarms (optical, heat, and CO models) — an ideal choice for larger homes or multi-storey properties.

With its two-part assembly design, installation is simple and efficient. The mounting base can be fixed during the 2nd fix phase, while the alarm head is easily added later. The included foam-gasketed universal base provides generous wiring space and prevents dust ingress.

Supplied with a heat-shrink dust cover, the Deta 1164 can be installed and tested before final occupation, ensuring long-term reliability and compliance with UK fire safety regulations.

Features

• D1 Fire Safety Compliant: Suitable for rented and multiple occupancy homes.
• 10-Year Sealed Lithium Battery Backup: Provides long-lasting reliability with low battery warning.
• Interlinkable System: Connect up to 12 optical, heat, or CO alarms for whole-property coverage.
• 85dB Alarm Output: Loud, clear warning sound for maximum safety.
• Two-Part Assembly: Easy to install with separate base and plug-in alarm head.
• Universal Mounting Base: Large wiring space, foam gasket, and fly-lead connection.
• Dust Protection: Includes heat-shrink dust cover to protect during building works.
• LED Status Indicators: Clear visual signals for operation, fault, and test modes.
• Test & Silence Button: Simple maintenance and alarm control.
• Low Power Consumption: Maximum 9W for energy-efficient operation.
• 5-Year Guarantee: Quality assurance from Deta Electrical.

• Brand: Deta
• Model / Part Number: 1164
• Type: Optical Smoke Alarm
• Power Supply: 240V AC mains with 10-year sealed lithium backup
• Sound Level: 85dB at 1m
• Interlink Capability: Up to 12 alarms (smoke, heat, CO)
• Power Consumption: Max 9W
• Battery Backup: 10-year sealed lithium cell
• Mounting Type: Two-part assembly (base and alarm head)
• Indicators: LED power, fault, and alarm status
• Control Buttons: Test/Silence
• Dust Protection: Fitted heat-shrink dust cover
• Guarantee: 5 Years
• Compliance: Suitable for D1 category systems

Ideal For

• Landlords and property managers
• New builds and refurbishments
• Multi-occupancy homes (HMOs)
• Hallways, landings, bedrooms, and living rooms

Add this heat alarm with the Deta 1165 Heat Alarm and the Deta 1169 CO Alarm to your home or office building.