Intelligent Wireless Home Security Smoke Detector

Features:
  Ceiling or wall mounting
  Easy to install with mounting hardware included
  9V battery operated(included)
  Suitable for any room
  Test button for easy recommended monthly testing
  Low battery signal
  Safety clip feature, not allow mounting of smoke alarm without battery installed
  Ionization chamber for early detection from all directions
  Loud 85DB alarm signal

Specification:

power：9～15VDC
current：Static current <10mA
smoke sensitivity：Suitable for UL 217 standard
Temperature：40℃～45℃
Humidity 10%～90%
Alarm voice: Within 10 inch can be 85 db 

Item Includes:

1 x Wireless Smoke detector