Close with power on, open with power off. Remove the remains automatically, low noise , and againt the wind pressure

 Special device : inner-placed wave receptor . Detect : door detected signal output (selected).   Security type: the application scope of the switch : wooden door, glass door, metal door , fireproof door.    Close with power on, open with power off. Remove the remains automatically, low noise , and againt the wind pressure.    Size : length 250 x width42 x height25(mm).    Work current: 12v/480mA: 24v/240mA .    Input voltage : 12v or 24v .    Affordable Tension: 280kg(600Lbs).   The specifications of all the products should take the actual products as standards. Due to the update of the technology , we cannot promise all the actual products are the same as shown in this material. For detail technical parameters , please reed the instructions enclosed with the products

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