The robust and weatherproof LX-402 detector, purpose built expressly to offer protection for numerous outdoor applications. LX-402 provides superior protection, with high reliability against water and insects which required as most important performance for outdoor use detector. The Ingenious interior design simplifies wiring and makes for tighter sealing. As well as having an intelligent interior design, the attractive outer design can match residential decor. The Patented double conductive shielding can resist more than 50,000 lux of sunlight, eliminating false alarms from light sources.