GSM 4-Way Extension Lead Audio Monitor with Voice Monitoring and Call-Back Function
This GSM 4-way extension lead is a mains-powered audio monitoring device built into a working 4-way power adapter for authorised use where local laws, permissions, and consent requirements are fully met. Designed for fixed indoor placement, it combines everyday extension lead functionality with GSM-based remote audio monitoring, allowing users to carry out audio check-ins through a compatible voice SIM and supported GSM network bands. Because it operates from continuous mains power, it is suited to longer-term use without the need for battery charging.
Built for simple ongoing operation, this GSM extension lead supports remote audio access by phone call, voice-activated call-back alerts when sound is detected, and SMS-based control for selected settings. The stated dual microphone design supports audio pickup at distances of up to 10 metres, while quad-band GSM support is listed for broader network compatibility. For users who need a mains-powered GSM audio monitor in a properly authorised indoor environment, it offers a practical fixed-location setup in a familiar extension lead format.
Key Features
- Working 4-way mains adapter: Functions as a standard 4-way extension lead while also housing GSM-based audio monitoring features.
- Remote audio check-in: Supports audio access by calling the installed SIM number through a compatible GSM network.
-
Voice-activated call-back: Can place an alert call to a saved number when sound is detected.
- Continuous mains power: Runs from wall power for extended operation without recharging.
- Quad-band GSM support: Listed as supporting 850, 900, 1800, and 1900 MHz bands.
-
Dual microphone design: Stated pickup range of up to 10 metres.
- SMS setting control: Allows selected functions such as call-back mode to be enabled or disabled by text.
Ideal For
This product is intended only for authorised indoor use where all applicable laws, permissions, and consent requirements are met. It may suit controlled environments where mains-powered GSM audio monitoring is required and where users need continuous power rather than battery-based operation. With remote audio check-in, call-back alerts, and SMS-based control, it is a practical option for fixed-location use in lawful and properly authorised settings.
What’s in the Box
- GSM 4-way extension lead audio monitor
- User manual
NEED TO KNOW
- Product type: GSM 4-way extension lead with audio monitoring features
- Power type: Continuous mains-powered operation
- GSM bands: 850, 900, 1800, and 1900 MHz
- Monitoring access: Remote audio check-in via GSM call
- Alert mode: Voice-activated call-back function
- Control method: SMS-controlled settings
- Microphones: Dual microphones
- Stated pickup range: Up to 10 metres
- Use condition: For authorised use only, subject to local laws and permission requirements
Dimensions
250 x 50 x 20 mm
Weight
450 g
