r-tech 2mp 4-in-1 ahd/cvi/tvi/analog outdoor/indoor turret dome camera with matrix ir night vision – 2.8mm fixed lens – white r-tech the ca-tvi-ird80-1080p-matrix is an outdoor, night/day dome tvi security camera with a 2.8mm fixed lens and easy mounting system perfect for protecting any business or home. the new tvi security cameras offer a great alternative to ip systems. these cameras provide the resolution and simplicity of ip, but with a high-definition analog signal. the new tvi-dvrs are also backwards compatible with analog and ip cameras making upgrading existing systems easy and affordable.