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Ships within 48 hours · Estimated delivery Aug 6 - Aug 11
GSM Frequency: 850/900/1800/1900MHZ
Alarm host with 2
Integrating with "smart life"ecosystem
Weighing a substantial 375g (like holding a grapefruit-sized cloud)
1) None code: no learning
JC Wireless 433MHz Signal Amplifier Repeater for Alarm System sirens GSM Frequency: 850/900/1800/1900MHZBrand: JCHENG SECURITY Features: The Signal Amplifier is specialized in 433MHz , specially for 433MHz alarm kit The Wireless signal repeater is a special kind device for extending distance between alarm host and its detectors or sensors It can enhance the original weak signal with stronger power so that enlarge the transmitting distance If you are using 433MHz based alarm series, if there has many walls or doors between alarm host and detectors
