Dongguan Heng Hao Electric Co., Ltd. is located in Dongguan City, Guangdong Province with very convenient transportation and a favorable geographic location.We are specialized in developing and producing temperature controllers, thermostats, thermal protectors, temperature switches, temperature protectors, bimetal thermostat and other related products. Our company has more than 10 senior technicians who are very familiar with this industry. Our products have been certified by CQC, VDE, UL and SGS environmental systems. Our company is always adhering to ISO9001:2000 Quality Management System and the product quality is automatically inspected and controlled by the computer. Our annual output can reach 50,000,000 pieces and our products are widely exported to Europe, America and South Asia.