HIKVISION DS-PD1-EB-WR Wireless Panic Button(433MHz)SpecificationSoftware FeaturesTamper-Prooftamper alarmHardware FeaturesIndicatorDual-LEDElectrical CharacteristicsBattery TypeCR2450 3.0VBattery Life Span2 years Battery lifeWireless TransmissionNetwork EncryptionAES-128 encryptionRF Frequency433MHZRF Distance800m(open space)
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