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Defense and Security is that defence is the action of defending, of protecting from attack, danger or injury while security is (uncountable) the condition of not being threatened, especially physically, psychologically, emotionally, or financially.
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    Publish time 2020-08-20 11:06    

Jamming Signal Detector for 433 / 868 / WiFi / Mobile signal

How if criminal using signal jammer to disable 433 / 868 / WiFi / Mobile connection of Home / office security system and Internet of Things ?


Modern security systems apply new communication technology to transmit alarm data or video through cellular system or WiFi, etc. However, smart criminal uses signal jammer to disconnect the communication of security system.

This device is made to take precautions against the criminal using signal jammer to disable the WiFi and mobile connection of Home / Office security system for invasion and stealing valuable property or information [data].

This device will issue alert (warning trigger) back to control center to notify the attempted theft / robbery, before the 433 / 868 / WiFi / Mobile communication of home / office security system is been blocked.



 L 13 x W 6.8 x T 2.6 cm


 about 195 g


 9V ~ 16V DC, 150 mA

 Detecting Frequency

 1. Wideband jammer of WiFi and cellphone frequency bands

 2. 433 MHz and 868 MHz narrowband jammer (single channel transmitter)

 Bandwidth  Resolution

 FULL band detection

 Frequency scan timing for

jamming signal

 Always detecting

 Handling of jamming signal

 Instant activate relay output after verified the jamming signal

 Warning mode

 10 LEDs

 Alarm output

 1.0A relay, with NO-NC output

 Sensitivity Tuner

 Eliminate the environment interference (background noise)


Without interfere with digital signal

Background noise Filter

Alarm output

Sensitivity tuner