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  For lifetime of safety light curtain, in terms of regular safety grating manufacturers, basically can be used for more than five years. Some customers are not good at using, or are not well maintained, there may be problems within five years, in fact, the time is not long depends on whether the care will be maintained! A set of photoelectric protection device, the price is not dozens of things, generally hundreds or thousands of pieces, especially the imported safety grating price is not cheap, usually pay attention to cleaning and maintenance, regular inspection work, the general normal warranty period is one year, the non-human problems during the warranty period can be guaranteed, basically there will be no problems, Later use do not mess up and touch the basic use time will not be less than five years.