Dongguan Dadi Electronic Technology Co., Ltd. is based in China and lists Light Curtain and Safety Curtain Sensor on Global Trade Plaza. The company lists 2010 as its year of establishment. The Light Curtain features a 30 * 30mm width and thickness, IEC61496-1/2 standard of Type 4 with CE certification for Type 2 and Type 4, short reaction time of 15ms, surface mount technology for shock resistance, aviation plug connector for wiring, and self-examination function. The Safety Curtain Sensor shares the same dimensions, standards, certifications, reaction time, mounting technology, connector type, and self-examination function, and is used in forging machinery and hydraulic equipment for press stroke protection between 30 and 180 degrees.