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  • Outdoor waterproof Microphone - An IP camera external microphone for M7B77-POE / M7B57-WPS / M7B77-W / M7D77-POE Or Any IP Network Camera & PTZ IP Camera with Audio Interface
  • Camera must have Audio interface ( Buyer complain Microseven microphone does not work on reo link rlc-23 ip camera becasue of reo link camera does not have audio interface)
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Microseven M7WP-MIC waterproof outdoor Microphone for M7B57-WPS / M7B57-WPSE Or Any IP Network Security & Surveillance Camera or Any PTZ Camere with Audio Interface - An IP camera external microphone

1.

Scope

This specification applies electret condenser microphone (E.C.M)

2.

Model No.

M7WP-MIC

3.

Operation Condition

3.1 Temperature

-20~+70℃

3.2 Relative Humidity

35%~85%RH

3.3 Pressure

86~106Kpa

3.4 Environmental Noise

36dB  (Maximum)

3.5 Operation Voltage

1~10VDC

3.6 Earth

⊙

4.

Electrical Characteristics

4.1 Standard Operation Voltage

3VDC

4.2 Impedance

2.2kΩ  (Maximum)

4.3 Current Consumption

0.5mA   (Maximum)

4.4 Sensitivity

-29dB±2dB(0dB=1V/Pa,1KHz)                            
Vs=4.5V  R1=2.2kΩ

4.5 Directivity

Omni-directional

4.6 S/N Ratio

40dB(Minimum)

 

4.7 Schematic Diagram
Vs= 4.5V ；
R1=2.2kΩ；
C=1uF

4.8 Test Temperature
Relative Humidity

20℃±2℃
45%~65%RH

4.9 Frequency Response

5.

Mechanical Characteristics

5.1 Dimension

￠6.0±0.1×5.0±0.2

5.2 Mass

≦0.35g

5.3 Dimensional Drawing

6．

Reliability Tests
The sensitivity to be within ±3dB of initial sensitivity affer 3 hours conditioning at 20℃.

6.1 Vibration

Frequency1      10Hz~55Hz
Amplitude        ±0.15mm
Frequency2      55Hz~150Hz
Acceleration      20m/s
Change of Frequency 1octave/min
2 hrs in each of 3 axes

6.2 Shocks

Pulse Shape Half Sinusoidal
Puise Duration 11ms
Acceleration 150m/s2
Number of Jolts 10 in each of 3 axes

6.3 Dry Heat/Cold

70℃ for 72hrs      -20℃ for 72hrs

6.4 Damp Heat

90%RH,+40℃ for 120hrs

Temperature Cycles

-20℃←→25℃←→70℃ 
(2h)(1h)(2h)(1h)(2h)      10cycles

7.

Cautions

7.1 The soldering copper of a smaller type of less than 20W shall be applied.

7.2 The temperaure of the working surface of the soldering copper shall be below 270℃.

7.3 E.C.M shall be solderde fixed on the metal block (heat sink)which has the higher
Radiation effects heat sink shall contact with each of E.C.M.

7.4 The soldering time for each terminal shall be 1~2 sec.

7.5 The pin hole soldering shall be avoided.

7.6 E.C.M may easily destroyed by the static electricity,and the countermeasure for eliminating. The staticelectricity (the ground for soldering copper,f or worktable and for human body) shall be executed.
Hard to beat this mic
By nayr on October 3, 2016
Verified Purchase
Works great, alot better than the others on here that I've tried..

Comes with splitter and coupler.. just what you need for external audio on a Dahua IPC, very sensitive.. picks up everything w/Line-In vol @ 10%
review image
3 people found this helpful.

Good sound quality
By cassoval on June 19, 2016
Verified Purchase
This one is working perfectly with PTZ surveillance camera.Better sound quality than mini preamp microphone.


Excellent microscopic
By Amazon Customer on December 28, 2016
Verified Purchase
Very clearer sound and the feed back strongly and I leave in Puerto Rico the house out here is cement, summer all year around we get a lot of rain and it works perfectly I'll be purchasing more of this!!


Five Stars
By Jim peterson on November 6, 2016
Verified Purchase
Works fantastic. So much better than the other one I used.


Five Stars
By Chuck on November 16, 2016
Verified Purchase
works great


Satisfied from ourdoor microphone
By Dave Springe on August 7, 2016
Verified Purchase
Waterproof microphone, works well and was for testing purposes. Good purchase.


Works great, plug and play installation!
By Chagg on January 15, 2017
Verified Purchase
Hooked up to Amcrest ProHD outdoor works great for two months now. Love the power supply splitter that is plug and play with camera power supply.



Great Microphone for the Money

By jenbear on January 4, 2017
Verified Purchase
works a little too well, you hear everything loudly.