F999B
The ultimate professional listen through wall system that can hear sound, speech and conversations through concrete, metal, wood, brick in fact any solid surface.
We have received varied results as it depends entirely on the surface you use and many other factors such as distance and volume.
Earbuds are provided for improved sound quality, sound can be improved further with a good quality noise cancelling pair of earphones.
F-999B professional listen through wall is a highly sensitive contact and probe microphone amplifier system. Both microphone and amplifier are built into a solid metal housing for durability. Enhanced quality sound and performance capable of listening to conversations in adjoining rooms and houses. Included earbuds, a built in rechargeable lithium battery and all accessories needed to achieve the job. The highest sensitive contact microphone available with superior detection ability using best quartz crystal piezo. Which makes it perfect for professional pipe fitters, plumbing and construction as well as Surveillance work
Disclaimer warning: illegal use of this product is not allowed! Do not use this product to engage in illegal activities or promote dangerous and illegal acts. Please check local laws in your country for type of use permitted.
Features and Specifications
Penetrable surfaces: Cement, Metal, Wood, Iron, Glass, Plastic, Brick
Working time: Continuous monitoring up to 24 hours
Headphone output: 3.5mm stereo @ 250mW
Four audio channel: 1200Hz, 800Hz, 200Hz
Maximum gain amplification: 20000 times
Battery type: 3.7v lithium battery
Microphone sensitivity: -70db
Current consumption: 10mA
Record line output: 3.5mm Jack socket
Battery capacity: 250mA
Package includes
Sonde / wall contact microphone/earbuds
Probe / Needle microphone
Microphone / Headphone Amplifier
Charger lead and ABS Storage Case
