ChangSha Circle Tech Co.Ltd

ChangSha Circle Technology Co.ltd. is an enterprise specialized in the professional research and development of auto fittings . After several years efforts . the company has launched a series of supported products for automobiles . such as the electronic regulator with short-circuit protection and KDL auto-control horn. The KDL auto-control horn, the research findings with eight years efforts of the company, absolutely solves the pendent technical problems of non-waterproofness, contact burning, and short service lift, which has been puzzling the contact-type automobile horn over a long period of time. The unique features of product such as waterproof functions, multiple protective circuit, special techniques, as well as ultra-thin figuration, practicability and serviceability be regarded as the leading position among the counterparts, and the second to none in the world at present. Function characteristics 1. It can continue to operate normally after being immerged into water for 48 hours 2. After being powered for more than 3 seconds, the auto-control function will disable whistling of the horn; this will effectively prevent the damages of horn itself and automobile circuits when the contacts of the horn relay is burnt 3. Overvoltage protection: a horn of 12V will not be damaged when it is connected by accident to a voltage of 24V, even the impact of peak value generated by the automobile cannot damage the horn slightly. 4. It works within a wide operating voltage range, with a volume controlled as per the requirements of environment protection. 5. Its ultra-thin figuration is applicable to all types of motor vehicles. 6. It can work stably within a temperature range from -40C to 80C. 7. Its whistling capacity are more than 350 thousand times, and its service life is 2-5 times of the contact-type horn, with a normal operation period of at least one year.