Serene Central Alert Audio Alarm Sensor
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Serene Central Alert Audio Alarm Sensor

Product Code: CA-AX

  • Optional accessory for the Sereonic Alert Wireless Notification System (CAQ-1002/CA-360QK), Central Alert Portable Remote Receiver (CA-RX) or the Central Alert Wearable Pager Receiver (CA-PX)
  • Detects any loud alarm sound of 15 seconds or longer and sends a wireless signal to either of the three systems to alert you
  • CA-AX is capable of detecting alarm sounds used in smoke detectors (T3 signal) and carbon monoxide detectors (T4 signal)
  • Requires (2) AA alkaline batteries (not included) with average battery life of 10 months
  • Operating range: up to 200 feet
  • Mount it next to your audio alarms for alarm sound detection
  • It can also be hardwired to your audio alarms that come with connecting terminals for direct activation (i.e. doorbell)
  • Will not work when purchased alone; must be paired to either CA-360QKCAQ-1002, CA360, CA-380,CA-RX or CA-PX


  • (1) CA-AX Wireless Audio Alarm Sensor 
NOTE: Requires (2) AA alkaline batteries, not included in packaging

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