Model NO.OK810SDPowerDC 3V (built- in lithium battery )Sensor Type ElectrochemicalSound levelLoud>85dB(A)alarm signal @1MCO Alarm Silenceabout 5 minutesLow Battery Warning Si
Model NO.OK506SDOperating voltageDC9VMain MaterialABSAlarm outputSound & Flash alarmUsable area216-431sq.ftSound level85dB/3mInstallationWall or Ceiling mountedWorking en