Package Includes:
<br />1x Wireless Fire Smoke Detector
<br />1x English User Manual Specifications:
<br />Color: White
<br />Material: Plastic shell
<br />Operating temperature: -10   ~ +50  
<br />Alarm mode: Wireless output / LED indicator alarm
<br />Transmission frequency: 433HZ
<br />Transmission distance: 100m (barrier-free)
<br />Quiescent current:   10uA
<br />Alarm current:   30mA
<br />Working humidity:   95% RH
<br />Noise:  85dB
<br />Battery: 6F22 9VOLTS battery (battery not included)
<br />Product size: 11.5*11.5*4.5cm  
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