The DM-CO 2002LPH is an intelligent vehicle license plate reading box camera featuring a built-in CAR-DC Iris Control technology which allows the camera to achieve reliable car license plate recognition for roads surveillance of a car speed up to 90mph. With Sony HQ1 producing excellent images of 540 lines of resolution, it also has a low lux rating and Digital Noise Reduction function built-in. This security camera auto detect the voltage (12V DC/24V AC).