HY-W21 Home Security Alarm System of WIFI PSTN

This wireless gsm alarm system wifi is triggered by magnetic sensor, suitable for windows and doors when opening.

Product Details

Product Introduction

This wireless gsm alarm system wifi is triggered by magnetic sensor, suitable for  windows and doors when opening. The 110 decibel sound of a wireless door alarm can help deter intruders, or alert your neighbors. It suitable for  for family, business, apartment, hotel room, garage, rv, etc. Smart sockets can control the power supply of electronic devices through the network. You can control the on/off state from anywhere with a network connection via your mobile phone. 


Our wireless gsm alarm system wifi is simple to install and it has stable and excellent working performance. This device is perfect for home use. When a door or window opens or closes, it will send an alert directly to your phone if the movement is detected while you are out. Built-in alarms and night lights, support for extensions of up to 20 sensors and 5 remote controls paired with a main panel hub. In the event of a power failure, it has a spare battery to last eight hours. This product is sold well both at domestic and abroad, if you are interested, please let us know!


Technical Parameter

Alarm Communication ways

Alarm signal transmitted via WIFI/GPRS/GSM network


AC 100V~240V

Message Push

Arm/Disarm information、System information、Alarm information

Standby Battery


GSM working Frequency


Number of Zones

32 wireless zones

GSM Emission Frequency


Range of Temperature

-10℃ ~ +50℃

Receiving/ Emission Frequency

433 MHz

Range of Humidity

40 ~ 70%



Emission Distance


APP  Language

Chinese, English, Vietnamese, Dutch, Turkish, Spanish, German, Italian, French, Russian, Finnish

SMS Language

Chinese, English, Vietnamese, Dutch, Turkish, Spanish, German, Italian, French, Russian, Finnish


A Sweet and Safe Home Complete Security System

Smart Sockets

Super Configured Function

Smart Setting for Arm/Disarm

Fast Calling For Alarm

Remote Monitoring/Speaking

Multiple Modes Gurantee You Best Guard

Remotely Control Your Smart Life

support 8 Alarm phone


battery Backup for power Failure



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