The ALC-SIR2 Wireless Solar powered siren is a energy efficient alarm built for outdoors built to output both a siren and strobe light when an alarm has been triggered. Ideal for outside homes and small office buildings. 

Features:

•  Solar wireless outdoor siren (110dB) with flashing strobe light
• Can be used as wireless siren by connecting to control panel
• Can work as a standalone alarm system by adding wireless accessories
• Adjustable siren volume and duration
•  Features inbuild tamper switch
•  Built in 3.7V rechargeable lithium solar-power battery