YM-750NT(LED)-UL Single door electric lock with Timer delay Function.can be used to different Door types.The time delay mode can set up 0,3,6,9sec.has been certified by UL294 &1034 as well as ANSI/BHMA A156.23. In terms of safety, durability and environmental adaptability of the product, it has been tested by the world's most stringent standards,providing architects, consulting engineers, system integrators and end users with authoritative and objective product performance and quality assurance.
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