CCD camera: Pixels: AD converter: Camera Lens: Illumination: Petri dish Diameter: Testing method: Counting time: Detectable limit: Data interface: Software: Professional Colour digital CCD Camera 1.4 million 12 bit 8mm Megapixel lens Long-life upper incident and bottom transmitted LED arrays Standard 50mm~110mm Fully automatic with manual option Over 300 colonies per second, 1 plate per second Colony 0.1 mm USB 2.0 Users-friendly software with colony counting & zone measuring function