1. Compatible with Alexa and Google home: This alarm sysetm works with Amazon Alexa and Google Home for voice control ( Alexa and google home devices not included ). Just ask app Alexa on your phone to Arm / Disarm/ the whole system in a specific instruction. Remote control your Alarm system anywhere in the world with your smart cell phone, no need repeated operation! 2. WiFi & GSM Support and Auto Dialer Function: This alarm system support different alarm message info(APP Message Push / SMS Message / Voice monitoring / Sim card phone call).Wifi way. It will push alarm notification via free app when it is triggered. GSM Way: Insert 2G SIM card into the alarm system and save your phone number on it, then it will send message or call your cell phone when alarm alerts.
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HIK series>>>>HIKVISION OEM. Hikvision System Kit. can plug and play with Hikvision NVR. >Search Tool：SADP (HIKVISION). ▶ 4K resolution 3840 x 2160P. Tioc 2.0 active deterrent technology with a Siren, Red & Blue Strobe Light to scare off intruders upon detection.
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> 8-MP 1/2.8" CMOS image sensor, low luminance, and high definition image. > Built-in warm light and IR LED; the max. IR illumination distance is 30 m and warm light distance is 30 m. > Sound and light alarm (red and blue lights).
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VENZ Wireless Home Security Alarm System4 Pieces-KitDoor Window SensorIndoor ....
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This alarm hosts for all GS-107 in this link are all WIFI （2.4Ghz） & GSM（4G） GPRS versions. Siren output. Alarm Type. 1 x indoor Wired Siren. Password Keyboard. Door/Window Sensor. Output Number. Connection Type.
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> APP : iDmss( iOS), gDmss( Android), Smartpass. > 8-MP 1/2.8" CMOS image sensor, low luminance, and high definition image. > Built-in warm light and IR LED; the max. IR illumination distance is 30 m and warm light distance is 30 m.
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eBay