Side View Smoke Detector Camera One to five cameras can be built inside to cover any room. Great for ceiling mount viewing. Cameras can also tilt for best angle. Powered by 12 Volt battery pack or AC adapter (both supplied). Unit comes with 1 camera. --Smoke Detector does not actually work
Specs: ST-150W, & G B/W, 420 Lines of Resolution, .5 LUX, 3.6mm Wide Angle Lens (8, 12 & 16mm available) 9.5-12 Volt
ST-150WC, & GC Color, 380 Lines of Resolution, .7 LUX, 3.6mm Wide Angle Lens (8, 12 & 16mm available) 9.5-12 Volt
434MHz cameras use your TV (use channel 59) to receive image.
900MHz or 2.4GHz cameras need a receiver.