DA240: Latching alarm indicator

  • Monitor 12V DC security circuits
  • Tamper-switched

DA240: Latching alarm indicator

These 12V DC-operating audio and visual indicators can be used in areas where no power supply is available. The on-board battery charges from a 12V clear signal.

Featuring a green LED and a red LED for each channel and a push-button to mute the internal sounder when triggered, these are designed to remotely monitor an intruder alarm installed on-site or whether a fire door is open or closed.

The DA240 & DA280 are normally installed in a manager's office or a security gatehouse. When a fire door opens the sounder in the unit activates and the red LED for that channel illuminates.

Pressing the button silences the sounder and the red LED remains illuminated, indicating that the fire door is still open. When the fire door is closed, the sounder activates again and the green LED illuminates to indicate that the fire door is now closed. Pressing the button again when the door is closed silences the sounder and the green LED extinguishes.

The red LED will switch off only when the alarm line is clear and the door is closed.

Ordering information

Technical information

Download Data sheet


Voltage10.5 > 14V DC
Connection typePCB terminal block (2.5mm²)


Operating temperature -10°C to +40°C
Storage temperature -20°C to +50°C
Operating relative humidityMaximum 95% non-condensing
Ingress protection IP20



DepthHead: 69mm Base: 60mm
Weight< 0.8Kg
Enclosure materialMild steel
FinishPowder coated RAL 9016 (White)

Ordering information

GTINPart codeDescription
DA240Latching alarm indicator
DA240-BATReplacement battery pack for DA240

Available from all good distributors.