Founded in 1980, we, Taiwan Security Net Co., Ltd, have been marketing our products with SENGATE for years. We are qualified by ISO-9001 Approved, and we also got CE, FCC and IP Rating Certificate on our main products. With unique innovation and provide total solution of full range of photoelectric beam sensors, SENGATE's core technology provides the double stability, anti-environmental interference features, low failure rate and long lifetime to protect your home safety. SENGATE product line now are including full series of active Photoelectric Beam Sensors ( Single, Twin and Quad, and Curtain Beam ), Taut Wire Fence Sensor, Prox Readers, Glass Sensors, Magnetic Shutter Sensors, Emergency Buttons and Magnetic Switch Sensor as well. We design and manufacture high quality security products for use both in home and business environment, we also operate a flexible manufacturing base to accommodate changes in your marketing requirements.