The ADM00344 is a RE46C190 a low power, low voltage CMOS photoelectric type smoke detector demo board. The demo board is a complete stand alone smoke detector application with a smoke chamber emulator. Key test points of the device are available at the bottom edge of the demo board. It is designed for battery operation using a CR123A battery or can be operated using a power supply. The RE46C190 application circuit is on the right side of the board by the battery holder and piezo horn and the smoke chamber emulator is on the left. The smoke chamber emulator can be disconnected from the application circuit and a photo smoke chamber or its components can be connected to the demo board.