HY-SA21A-W2 Wireless Smoke Alarm

Features

• Split-Spectrum Sensor Technology
  Enhances accuracy in detecting fire or smoke by analyzing different light wavelengths.

• Test and Silence Function Combined in One Button
  Simplifies operation with a single button for both testing the device and silencing false alarms.

• Loud Alarm Output
  Delivers a sound level exceeding 85 dB(A) at 3 meters for effective alerting.

• Low Quiescent Current Consumption
  Optimized for energy efficiency, extending battery life.

• Surface-Mount Device (SMD) Circuit Board Design
  Modern design ensures durability and compactness.

• Low Battery Warning Signal
  Alerts users promptly when battery replacement is needed.