Here is another device that lets you find spy cameras at your place. The VCLD-1 Hidden Camera Lens Detector lets you visually locate hidden wireless or hardwired cameras. It has 6 LED lights around the viewing port. Simply scan your room through it, and you will see bright red dots when hidden cameras are located.
The device runs for 3 hours on battery. It has a ABS plastic case. You can find out more here.