Infrared safety photocells suitable for outdoor use with an IP rating of 55, sporting a metal case to help make it weather proof and vandal resistant it is definitely an ideal candidate for purchase. Narrow width ( just 25mm) makes for ease of installation.

Range: Up to 10m
Power Supply: 12 /24 Vac/dc
IP (Protection) Rating: 55
Dimensions: Slimline - 25mm x 22mm x 130mm