White. Dual voltage power supply with 230v mains power or 9v battery backup. Ionisation sensing technology that quickly detects fast flaming fires. Full function Electronic Test switch. Hush button to silence false alarms. Anti tamper locking mechanism. Up to 24 Firex alarms can be connected together.

White. Dual voltage power supply with mains 230v or 9v battery backup. Optical / Photoelectric technology that quickly detects smouldering smoky fires. Full function test button for battery and alarm operation. Tamper resistant locking pins included. Up to 24 Firex alarms can be connected together.