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5L Fire Alarm Panel - Button-Two Stage Accumulation Function:Circuit detection requires a period of accumulation time to confirm and reset the detector for second stage detecting accumulation. This way can reduce false alarm caused by circuits interference and enhance the reliability.- Stand-by Battery Protection Device:As blackout and the stand-by battery is below DC 18V, it will automatically stop discharging to extend battery life.- Quality Control:All interior components of operation panel and base board in the unit are approval by CE and CNS. All products have to pass strictly inspection before delivery to ensure durable using.- User-friendly Design:All circuit boards use modular design, the external lines input and output are separated from terminal board and with protection function on the input side. If circuit board is connected with wrong power supply and causes breakdown, just replace the specific circuit board and don't need to disassemble external wiring. It's easy and efficient to maintain.- Surge Protection Device
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