M7WP-MIC waterproof outdoor Microphone - An IP camera external microphone:
This microphone should work in any environment.
2) If the receiver is analog, you must need an amplifier box. Then you can hear the audio from a speaker. If the receiver is digital, you need an analog to digital converter. Usally we use a computer or a camera. Then you can use a phone and computer to listen to the audio from the microphone.
Advanced professional environmental sounds digital microphone, pinhole design, and hidden installation.
It is high sensitivity, high bandwidth, and noise proof. It covers the listening area of 375 sq ft / 35 square meters.
It has been used ear handle removable surface annular rib design, easy to wear tube wall installation.
There are built-in digital voice processing circuits and micro-processing chip, 0.8mm pinhole design principle used to accurately calculate of the sound reflection angle.
There is automatic suppression of the high-intensity sound, reliable protection for the back-end audio surveillance equipment.
Integrated professional pre-amplifier, microphone head can directly drive active speakers, hard disk recorders, tape recorders and so on.
Listening area 108 sqft - 375 sqft
Audio transmission distance 3000 m
Frequency response 20Hz ~ 20kHz
Sensitivity -47dB
Signal to Noise Ratio 50dB (40 dB sound source 1 meter) 30dB (10 meters 40 dB sources) 1KHz at 1 Pa
Directivity omnidirectional
Dynamic Range 80dB (1KHz at Max dB SPL)
Maximum sound pressure 120dB SPL (1KHz, THD 1%)
Output impedance 600 ohms non-equilibrium
Output signal amplitude 2.5Vpp/-25db
Microphone Customized omnidirectional capacitor microphone
The ordinary four-core telephone wire, category 5 network twisted pair, and shielded cable can be used. Microphone head has built-in lightning protection, power supply polarity reversal protection. Integrated professional built-in preamplifier circuit, no adapter
Transmission cable telephone lines, network twisted pair, shielded cable (a complex electromagnetic environment with a shielded cable)
Supply voltage 8V-20V DC (recommended to use 12V, greater than 500 m recommended 15V)
Supply current 17 mA
Operating temperature -13F ~ 158F
Color Silver
Shell Material Metal
Dimensions L-2.5in ¡Á D-0.75in
Weight 1.8 OZ
RELATED SPEAKER CONFIG
There is two way audio in M7B57; the following photo is shown as installation protocol of speaker(s).
In Microseven software, you need to click on MIC icon to turn on your PC mic; then the speaker will have sound.
Customer Review on Amazon
ASIN: B00M5P7HCW
Most Helpful Customer Reviews
1 of 1 people found the following review helpful
By LL on August 3, 2015
Verified Purchase
The microphone arrived promptly from California. I installed according to the pictures provided here and on the M7 website.
Frankly, it didn't work at first. About the same time I bought this mic, a firmware update was released, which I installed, that caused the microphone to malfunction. A very recent firmware update, 1.2.7 fixed most of the problems, and it now works.
Like most microphones used outdoors, as this one is, there is a lot of background noise due to wind and traffic. I have it adjusted now to work pretty good and recommend it for those needing audio.
The wiring is a bit bulky and may require a covered outlet box for use outdoors.
I must say the Microseven camera is great. I have the wireless model working 200 feet from the house, no problem. And, the night time picture quality is great.
M7 support staff was very helpful and responsive btw.
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