■ Outdoor warning distances of 50 m, 100 m, 150 m, 200 m, 250 m ■ Digital Fuzzy Artificial recognition: quad-band FM, using artificial intelligence, fuzzy judge, the effective elimination of interference between radio, to prevent the omission ■ 2 beam light is blocked while the detection methods, the upper and lower beams of light at the same time is interrupted only when an alarm signal output line, there will be no malfunction occurs ■ AGC loop (loop gain) when the leaves and other objects blocking a beam of light, in the rain, Under fog, snow and other inclement weather, the loop gain is automatically adjusted sensitivity (more than 200 times), malfunction ■ The new optical system will not happen, for the first time using a wide-angle aspherical lenses in the industry, the small size, but the effective diameter is large ■ unique seal design, waterproof, dustproof better voltage ■ LCD display, light is more convenient and accurate ■ dew, frost measures ultrasonic organizations to effectively prevent condensation, frost indeed