LifeSmart DEFED Door/Window Sensor

LifeSmart DEFED Door/Window Sensor is a security-grade wireless sensor designed to monitor doors, windows and other opening points. It provides instant intrusion alerts, built-in temperature detection, tamper protection, long-range CoSS communication and up to 10 years of battery life.

Detects the opening and closing of doors and windows.
Sends instant app alerts when unauthorized access is detected.
Includes tamper protection against device removal or interference.
Monitors surrounding temperature through a built-in sensor.
Provides CoSS wireless communication up to 800 metres.
Offers up to 10 years of battery life.
Supports wireless OTA firmware upgrades.
Fits most doors, windows and other opening structures.

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  • DEFED Door/Window Sensor provides reliable protection for entry points throughout a property.
  • Its magnetic sensor detects when a protected door or window is opened or closed.
  • Immediate app notifications help users respond quickly to possible intrusion attempts.
  • Tamper detection sends an alert when someone tries to remove or interfere with the device.
  • The integrated temperature sensor helps monitor environmental conditions around the installation area.
  • Long-range CoSS communication maintains stable connectivity with the central security gateway.
  • Ultra-low power consumption enables dependable operation for up to 10 years.
  • Its slim design allows easy installation on doors, windows and other movable openings.
Specification Details
Product Type
Wireless Door and Window Security Sensor
Radio Protocol
CoSS, 433 MHz
Signal Range
Up to 800 metres in open-field conditions
Detection Method
Magnetic sensor with temperature detection
Activation Distance
Up to 2.5 cm
Power Supply
One CR123A 3V battery
Battery Life
Up to 10 years
Dimensions
Sensor: 22 × 22 × 89 mm; Magnet: 10 × 12 × 89 mm