... reader and Controller* Build-in 4DI,door open signal input, magnetic signal input, alarm signal input, etc. The relay should ... 5 periods, each using a different process to open the door: card flashing, card flash + password, invalidation, normal opening ... powerful in networking* Built-in anti-tamper function with alarm signal output* Waterproof.SpecificationPower Supply¦DC 9–15VPower Consumption¦< ...