Ei Electronics Ei650W-1XD Wireless Interconnectable Optical Smoke Alarm with 10-Year Battery, White, 115mm

Traditional smoke alarms often fail to alert occupants in distant rooms or on other floors, leaving critical gaps in fire protection. The Ei Electronics Ei650W-1XD solves this by adding wireless interconnection to a battery-powered optical smoke alarm, so when one unit detects smoke, all linked alarms sound simultaneously—providing whole-home coverage without complex wiring.

Who is it for

Homeowners, landlords, and facility managers seeking a reliable, self-contained fire detection system that can be installed quickly and expanded wirelessly. Ideal for residential properties, small offices, and rental units where wired interconnection is impractical or too costly.

Main features

• Photoelectric smoke detection for fast response to smouldering fires
• Integrated 10-year lithium battery—no battery replacements for the life of the alarm
• Wireless interconnection with up to 12 devices, range up to 200m open field / 30m indoors
• Loud 85 dB alarm at 3 meters
• Test/Hush button for easy weekly testing and false alarm control
• End-of-life signal alerts when the alarm needs replacement
• Ceiling mount with 115mm diameter, white ABS plastic housing

Specifications

• Detection principle: Optical (photoelectric)
• Power source: Integrated 10-year lithium battery
• Interconnection: Wireless (radio frequency)
• Max interconnected devices: 12
• Alarm volume: 85 dB at 3m
• Operating temperature: 0°C to +40°C
• Operating humidity: 15% to 95% RH (non-condensing)
• Mounting: Ceiling
• Diameter: 115 mm
• Height: 45 mm
• Material: ABS plastic
• Colour: White

Tips

For optimal coverage, install one alarm in each bedroom, outside sleeping areas, and on every level of the home. Test the alarms weekly and replace the entire unit after 10 years or when the end-of-life signal sounds.