GSM in power extension - USB version

GSM in power extension - USB version

GSM76-PWR

The power extension is one of the best places to hide a spy bug. GSM Spy Bug in power extension is equipped with a noise detection function and a spare battery, so it will keep functioning even during a blackout.

Voice Activation
GSM in power extension - USB version

GSM in power extension - USB version

The power extension is one of the best places to hide a spy bug. GSM Spy Bug in power extension is equipped with a noise detection function and a spare battery, so it will keep functioning even during a blackout.

 

Secutron PowerLine GSM

GSM in power extension - USB version is a discreet, professionally built GSM audio surveillance device integrated into a fully functional power extension. Unlike mass-produced imports, this model is hand-assembled in our own workshop using a standard Czech-market power strip, making it completely indistinguishable from everyday electrical equipment. Ideal for long-term room monitoring, it draws power directly from the grid while remaining operational even if disconnected.

Key Features:

  • Non-Stop Operation Powered directly from the wall socket for continuous use without the need for recharging.
  • Completely Unnoticeable Constructed from a genuine Czech power extension — looks and functions like any standard device.
  • Clear Audio Capture Sensitive microphone captures conversations clearly up to 5 meters away.
  • Unlimited GSM Range Works over any GSM mobile network using a SIM card — no distance limitations.
  • Adjustable Voice Activation Device can be set to call your number automatically when it detects sound.
  • Secure Build The unit can be opened only with the included specialized screwdriver for maximum discretion and tamper protection.
  • Audio Recording to Memory Card: Automatically records conversations to a microSD card when sound is detected or on command.

Functions:

  • Long-term monitoring without recharging
  • Voice-activated call-back function
  • Audio recording to microSD card
  • Unlimited listening range via GSM
  • Discreet and undetectable in any room

Ideal for: Office spaces, rental properties, warehouses, and other locations where unobtrusive surveillance is needed. The PowerLine GSM offers a professional solution for long-term covert audio monitoring with zero maintenance under standard power conditions.

This device is designed strictly for authorized monitoring and private property protection. Ensure all use complies with applicable privacy and surveillance legislation.

Custom Orders:

Need a different extension model? We can integrate the GSM module into a power strip of your choice. Contact us for custom fabrication options.

Technical Information:

Name Description
Audio Range Up to 2-3 meters
Power Supply Main grid (230V) + backup battery
Cable Length 3 meters
Dimensions 380 × 60 × 44 mm
Weight 800 g
Network GSM – all standard SIM cards supported
Recording Supports microSD card recording

The package contains:

  • Secutron PowerLine GSM (installed in power extension)
GSM76-PWR

Data sheet

Type
GSM
Microphone type
Electret
Battery
10 days
220V compatible
Password protection
No
Phone number filter
No

Specific References

Parameters Description
Range Unlimited
Number of microphones 1
Max. distance from the microphone 5m
Possibility of non-stop operation when connected to electricity yes
Operators support all
Voice activation yes
Vibration sensor activation no
Call number filter no
GSM frequency ranges 850/900/1800/1900
GPRS Upload60,TCP/IP
Working voltage 3.4—4.2V DC
Standby current ≈2.5mA
Start sound-controlling current ≈30mA
Speaking current ≈150mA
Working ambient temperature -20℃~+70℃
Working ambient humidity 20%~80% RH
Microphone attributes:
Type Electret Condenser
Direction Omnidirectional
Recording on SD card Possible to record on inserted SD card
Frequence range 20Hz ~ 20kHz
Sensitivity -38dB ±3dB @ 94dB SPL
S/N ratio 58dB
Size 4.00mm Dia

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