Top features-Protect your home day and night with infrared-Thermal sensor only records relevant events-Weatherproof camera works in all conditions Protect your home Keep your home safe with a Swann SWPRO-4KMSB-UK Thermal IR 4K Ultra HD CCTV Add-On Camera. When added to your DVR-5580 security system it can work around the clock and will switch to infrared when it gets dark. So whether its day or night youll always get a clear view of whats going on outside your home. Thermal sensor Some motion-triggered cameras will record any movement so you can end up with a load of irrelevant alerts based on trivial events such as wind moving a tree branch. The Swann SWPRO-4KMSB CCTV Cameras True Detect technology triggers recording by heat such as moving people or cars so it wont bother you with false alarms. The shape also really stands out acting as a further deterrent to would-be intruders. Weatherproof camera The Bullet Thermal Imaging IR 4K Ultra HD CCTV Camera is designed to withstand rain snow dust and heat so its more than capable of working through whatever the weather decides to throw at it.