The LifeSmart DEFED Siren is an indoor smart alarm capable of emitting a high-intensity 105dB alert. It can be integrated with door/window sensors and motion sensors to form a home security system, making it suitable for residential homes and small-to-medium-sized shops in Hong Kong. It is priced at HK$100 in Hong Kong.
Product Introduction
LifeSmart, a world-leading AIoT technology brand, has launched the DEFED security series, which features comprehensive improvements in sensitivity, reception range, and battery life. The indoor DEFED Siren can be easily linked via the LifeSmart App (iOS / Android) with other devices such as Door/Window Sensors and Motion Sensors to create a complete security system. Once an intrusion is detected, it immediately triggers a high-decibel alarm to deter suspicious individuals while simultaneously sending a push notification to your phone. For users looking to build a Smart Home security system in Hong Kong, this is an entry-level, practical smart home device.
Key Features
105dB High-Decibel Alarm with Adjustable Volume: The DEFED Siren allows you to adjust the alarm volume and duration via the LifeSmart App, delivering a high-intensity siren of up to 105 decibels. When a Motion Sensor detects an intruder or a door/window is opened unexpectedly, it triggers the siren and sends a notification to your phone.
Tamper Protection, Safe and Reliable: The unit can be mounted on the wall using screws or 3M adhesive. If the device is removed from the wall, a tamper protection notification will be immediately sent to your phone to alert you to the situation.
CoSS Connection, Long Battery Life: Connect the DEFED Siren to the Smart Station via the LifeSmart App using the CoSS wireless signal, which provides a long reception range of up to 800 meters and allows for two-way communication and real-time status feedback with the Smart Station. The CoSS signal features ultra-low power consumption, with battery power providing up to 5 years of runtime*.
*Frequent operation may accelerate battery consumption; actual lifespan depends on usage conditions.
Specifications Overview
| Brand | LifeSmart |
| Model | DEFED Siren Indoor Alarm |
| Main Functions | Up to 105dB alarm, adjustable volume and duration, tamper protection notifications, integration with door/window/motion sensors |
| Connectivity | CoSS wireless connection to Smart Station (range up to 800m), LifeSmart App (iOS / Android) |
| Power Supply | Battery powered, up to 5 years of battery life |
| Installation | Wall-mounted via screws or 3M adhesive |
| Price | HK$100 |
| Source | Official Hong Kong Product |
Ideal Scenarios
The DEFED Siren is suitable for anti-theft protection on home doors and windows in Hong Kong, as well as for nighttime security in small-to-medium shops and offices. When combined with LifeSmart door/window sensors and motion sensors, it provides peace of mind while you are away or traveling by triggering an immediate alarm and sending mobile notifications if any suspicious movement occurs while the house is empty. As it is battery-powered and wireless, no wiring or power connection is required, making it perfect for renters.
FAQ
Does the DEFED Siren require wiring? Is installation complicated?
No wiring is required. The DEFED Siren is battery-powered, and the low-power CoSS design allows for up to 5 years of operation. It can be installed by fixing it to the wall with screws or 3M adhesive, making it suitable even for rented properties.
Will the DEFED Siren's alarm disturb neighbors? Can I turn the volume down?
Yes. You can freely adjust the alarm volume and duration through the LifeSmart App. The maximum 105 decibels are intended to deter intruders, but you can set a lower volume for daily needs.
Where can I buy the LifeSmart DEFED Siren in Hong Kong?
LINKO Shop (linko.shop) has stock available. It is an official Hong Kong product priced at HK$100. Their physical store is located in Kowloon Bay, and they offer delivery across Hong Kong for online orders. You can also purchase the LifeSmart Smart Station and various sensors together to build a complete security system.
