Battery powered wireless smoke detector

Introductions for 4 wired smoke detector:

70% of all home fire deaths occurs in homes with no alarms or no working alarms, and nearly one quarter of smoke alarms in reported fire are not working. Our battery operated optical smoke alarm are designed to help protect you and your family from the dangers of fire.

This unit is smaller in diameter giving it a discreet design. This model is powered by a 9V battery, providing continuous protection, even during power outages.This easy-to-install unit includes a test button to verify the detection electronics are working as intended. Please install the smoke alarms on every floor of your home, in hallways, inside bedrooms, and outside of sleeping areas and replace smoke alarms every 10 years.

 Specifications for 4 wired smoke detector:

* Frequency:                               433/315Mhz

* Wireless distance                    100-150M

* Smoke Sensitivity:                   0.086 dB/m to 0.14 dB/m    

* Power Supply:                          9V Carbon Zinc Batttery 

* Battery Life:                             >12months    

* Low battery life:                       >30days    

* Alarm indicator:                       continuously emitting red light and shounder          

* Alarm sound level:                   >85dB at 10 feet (3m)    

* Temperature:                           0°C - 50°C    

* Humidity:                                 10%-90%RH, no condensation or icing

* Dimensions (L x W x H):          Ø140*41mm