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Metal Detector
GG Net Price US$ 239.00
The circuit described here is that of a metal detector. The opera- tion of the circuit is based on superheterodyning principle which is commonly used in superhet receivers. The circuit utilises two RF oscillators. The frequencies of both oscillators are fixed at 5.5 MHz.
Door Surveillance
GG Net Price US$ 599.00
Door SURVEILLANCE allows a person to stand 7 feet away from your door and see a camera's eye view of the other side with super wide angle no distortion.Can be installed in any metal or wood door up to two-inches thick.High quality security instrument with a series of advanced high-tech prism and ultra-precision optical.
GG Net Price US$ 1197.00
High frequency scanner is used to detect peeping cameras, tapping, cellular phones and other radio frequency devices that may be hidden in home or office.
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