Dahua ARD323-W2, bezdrátové dveřní čidlo, AES128, <40 mm
• Detection gap up to 40mm
• 1-ch wired zone interface
• Remote configuration, cloud upgrade and check status (via mobile App)
• Built-in battery for up to 5 years, and supports low battery alarm
• Temperature measurement
• Frequency hopping, two-way communication and AES128 encryption algorithm ensure the communication's stability and security, reaching up to 1,300m in an open space.