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The System Sensor P2R or P2RA for Canadian models, is a 2-wire, red, wall mount horn/strobe made by System Sensor, part of the SpectrAlert Advanced series. It was introduced in 2006, and discontinued in 2017. This model is the most common in Calgary, it is seen in a lot of places. These are well known for their extremely loud sound. The alarm uses a piezoelectric speaker to produce its sound.
Specifications
Voltage - 12 or 24VDC or FWR with automatic selection at 15 or 15/75 candela
Loudness - 101 dB on high volume, 98 dB on medium volume, 94 dB on low volume.
Strobe Intensity - 15, 15/75, 30, 75, 95, 110, or 115 cd on 24V, limited to either 15 or 15/75 on 12V.
Type: Electronic horn/strobe
Tone selections: Code-3 or continuous
Enthusiasts owned
MircomFan1 has a Canadian model (P2RA), manufactured in 2015.