Clipsal 755RLPSMA4 Fire Tek Series Photoelectric Smoke Alarm, Detector, 240V with 10 Year Lithium Rechargeable Battery Back Up, 85dB @ 3mtr, 140mm Dia x 47mm, Surface Mount, White

Features:
• Modern design with easy to use test/hush button
• Certified and ActivFire listed to AS3786:2014
• Sealed-in rechargeable lithium backup battery
• Easy installation and maintenance
• Quality optical chamber with stainless steel insect screen
• Wired interconnect feature (up to 40 alarms), compatible with all 755 Series Fire Tek smoke alarms
• Optional integral isolated relay (755RB) or wireless interconnect (755RFB) mounting bases
• Backwards compatible with 755PSMA/2 , 755RLPSMA2 and 755SMA smoke alarm surface mounting bases
• Robust digital design
• Memory function RED led flashes for 72 hours toidentify triggered alarm
• Low Battery beep snooze function hush low battery beep for 10 hrs
• New reinforced mounting base design (755PSMA4, 755RLPSMA4) increased strength
• New 0.6mm sensing chamber insect screen mesh reduces insect and dust ingress for less false alarms