WisuAlarm Battery Smoke Alarm (10 Year Lithium Battery)

The WisuAlarm DHI-HY-SA40A Standalone Smoke Alarm is a battery powered smoke alarm designed to provide reliable early warning of fire in domestic environments.

Using advanced split-spectrum photoelectric sensor technology, the alarm responds quickly to smoke while reducing common false alarms caused by steam or everyday household activities. This makes it suitable for use in bedrooms, living rooms, hallways and other residential spaces.

When smoke levels reach the alarm threshold, the unit emits a loud 85 dB audible alarm alongside a visual LED alert to clearly warn occupants. A combined test and silence button allows easy manual testing and temporary muting during nuisance alarms.

For added convenience, the alarm can also be silenced using a standard infrared TV remote, removing the need to access the device with ladders during testing or false alarms.

Powered by a sealed 10-year lithium battery, the DHI-HY-SA40A requires no wiring and minimal maintenance, making it ideal for homeowners, landlords and rental properties.

• DHI-HY-SA40A Standalone Smoke Alarm

• Split-spectrum photoelectric smoke sensor technology

• Fast response with reduced false alarms from steam and household activity

• Loud 85 dB audible alarm with visual LED indication

• Combined test and hush button

• Remote silence using standard infrared TV remote

• Low battery warning signal

• Sealed 10-year lithium battery

• Low quiescent current for long service life

• Ceiling-mounted installation

• Suitable for homes, apartments, dorms and rental properties

• Certified to EN 14604 standard