One Tech Intl' Co.,LTD

High quality, High technology,Innovative products ,Fast shipping ,Professional Service,
Quick Menu

OTP-GSM95 Socket GSM Monitoring

GSM Listening device


  • Voice active monitoring .
  • Built in adjustable sensitivity voice active microphone.
  • Built in High sensitivity monitoring amplifier microphone
  • Built in phone number filter function, other phone will not allowed to monitoring.
  • Can used SMS to set active or deactivate sound active mode.
  • Built in shock alert active function, will call and send SMS when detect shock alert.
  • Easy to operate, just install SIM card and SMS setting for all function modes
  • AC power supply directly, without worrying about Working time.





GSM band module: 900/1800/1900
Voice sensitive: -75db
Power: Direct AC power supply
Filter mode: 4 sensitivity voice filter
Alert mode: 3 SMS number&1 calling number
Control mode: SMS control


User's Manual Download: