Via 433MHz wireless radio frequency. This door sensor transmits the signal to the alarm panel (or the alarm host). This signal is transmitted. This signal is transmitted via WiFi or GSM/4G card. It needs to work with alarm panel together, can’t work alone.
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[Large Wireless Transmission Distance] Signals with strong penetration force can be sent to the receiver more than 200m/ 656ft away to warn you, providing security for your property and loved ones. 1 Receiver.
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Advantage of 4G alarm system: Australia, United States, Canada has cut the 2G sim card service. And United Kingdom, Mexico, Euro Union, ect will cut the 2G sim card in coming years. Without 2G networks, 2G/GSM only alarm system will fail to achieve it's major function, remote control through calls and SMS. To provide customers with longer alarm system lifespan, our company is launching a series of it's 4G alarm system which are both 4G/3G/2G(GSM) Network compatible. The 4G alarm system will work with United States, Australia, United Kingdom, Euro Union, Canada and most countries' 4G Sim card(Except China, Japan and Korea). The 4G alarm system support use 4G sim card to receive SMS message or phone call to remote control the alarm system(2G alarm system not support sim card function).
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Can be used as a doorstop when power switch is turned off. Once there are criminals trying to invade the room, they will send a high alarm sound of 120 decibels to scare off the criminals and remind you and neighbors.
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Built in PIR motion sensor. Alarm Type: The Alarm. Loud 105 db alarm. When the alarm is triggered,it sound for 20 seconds. 1 sensor (no battery). Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing.
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The sensors use infrared (PIR) technology to detect motions and surveil a designated area. This alarm system kit works effectively as a hunter safety system, hunting alarm, camping alarm, burglar alarm, and house/warehouse/yard/driveway security system.
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WiFi: 802.11 b/g/n. Alarm Sound Level:85db/1m. Alarm Current:≤220mA. Detecting Range:20m2.
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