A SpectrAlert Advance P2R vs SpectrAlert Series P241575 and L-series P2RL fire alarm sound off. Basically a loudness contest between 3 different System Sensor horn strobes. I'm using my System Sensor SpectrAlert P241575 horn strobe on electromechanical, my System Sensor SpectrAlert Advance P2R, and my System Sensor P2RL on 3000 HZ (all are coded to code 3 (temporal).
Негізгі бет SpectrAlert Advance vs SpectrAlert "Classic" vs L-Series (System Sensor Horn Strobes Sound off)
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