The AX-130TN short range photoelectric detector is compact in design with an IP65 highly durable structure. Rubber packing is used for all conceivable points where water, dust or bugs may penetrate, such as wiring holes, wire ports and the outer chassis. Preventing these factors helps deliver performance with higher reliability in severe outdoor environmental condition. In addition, the length between the upper and lower optics, and the width of the optics are ideally engineered to produce the most intelligent detection pattern which reduces false alarms by detecting human intruders only.