The 4902 codelock has 2 relays and allows for up to 1000 codes that can be assigned to one or both of the relays. Blue backlit button codelock modules Available in mirror stainless steel finish, a matt 316 grade stainless steel finish or gun metal grey finish Modules are compatible with both surface & flush 4000 series back boxes Can operate as standalone keypads 4902 and 4903 keypads are also networkable via RS485 User friendly programming menu with audible reassurance tones 4-8 digit programmable access codes 2 programmable relays (4902 and 4903), 3 programmable relays (4901)
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