Hidden Camera HC-CLOCK Wall-clock hidden camera, fully functional wall-clock, 4mm pinhole lens, 0.5 lux HC-EXIT Exit sign hidden camera, fully functional exit sign, 4.6mm lens, 1/3″ Sony CCD HC-PIR Motion detector hidden camera, 1/3″ Color CCD, 3.7mm lens, 700 TV lines, wall-mount bracket included HC-SMOKE Smoke detector hidden camera, 1/3″ Sony CCD, 3.6mm lens, 700 TV lines