Can someone identify this system sensor. It is currently flashing a red LED every 5 seconds and randomly makes a loud horn/alarm sound. The vista panel shows no errors.
Funnily enough I once helped someone else ID that exact detector: that’s a Bosch/Detection Systems/Radionics D-series/DS-series/MX-series photoelectric smoke & heat detector.
Most of the time those detectors will flash every few seconds to indicate they’re powered on (Some only have red LEDs). I’m not exactly sure what you mean by a beeping sound, as what I can see from the photo is a smoke detector without any horn, designed to be used on a fire alarm or security system (this case security system). What you’re describing is possibly a low battery on a residential smoke and or co alarm. If it is indeed the smoke detector pictured then it may be a problem with the detector malfunctioning. However I’m unsure if this model has a horn.