This Motion Alarm/Annunciator is small enough to fit in your hand. In annunciator mode, a pleasant chime sounds when the monitored area is entered. In alarm mode, sounds a 120 dB alarm when an intruder is detected. Mount it on a wall or place it anywhere in a room, choose the chime or alarm switch, and then turn it "on" and "off" with the remote control that comes with it. The adjustable sensor head provides 110° coverage within a 180° area up to 30' away. Requires 3 AA alkaline batteries (not included). 

Features:

• Small motion sensor. 
• Select between chime and alarm mode. 
• Provides 110° coverage within a 180° area. 
• "Sees" up to 30' away. 
• Turns "off" and "on" with a remote control button. 
• Additional remotes available.