Hi-sensitive lens or Infrared lighting sensor and IR LED works perfectly for monitoring at dark circumstance
4.3inch TFT LCD display with brightness, contrast and resolution functions adjustable
Perfect privacy protection due to no image indoor can be seen from outside glass peephole ever
Device operated by DC power with energy saving design
Manual door bell ringing button or automatic turn on by IR sensor
Silent audio monitoring system and unidirectional communication by microphone are made perfect protecting of keep stranger or intruder under surveillance
Either rechargeable or regular batteries are available as a power supply
Fit in various sizes of peep holes
Optional features of SD recording and GSM transmission
Expandable functions depend on family budget and personal needs
USA and PCT patent pending
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