This is a set of two Chamberlain 820CB garage door replacement safety sensors designed for compatibility with Chamberlain products. The sensors are made of a combination of plastic and metal materials and are manufactured in Mexico. The package includes two sensors with wire mounting brackets and screws. These sensors operate at a voltage of 10V and come with a lifetime manufacturer warranty. They are intended for use as garage safety sensors and are specifically compatible with Chamberlain models.
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