*******
** *** *****, *** Dahua ******* ****** ****** the ********* **** ** low ***** ***** *******, IR *****, *** *** ***********.
*******, **** ***** ***** quality *** ********** ****** than *** ****, *** IR ******** ******* **** even, **** ** ****** overexposure *** ************ **** across ****** *** **** FOV.
*******, ************ *** ** more *********** **** ********* or ***** ****** ****** as *** ****** **** be ************ **** *** base ** ******* (*** necessary **** ***** *************). However, **** ***** *** find **** **** ****** as ******** ******** ** hidden, ***** ** *** be ******** ****** ** Hikvision ******.
*******
*** ***** ******* ** priced ********* ** *** Hikvision ****, ********* ~$*** *** ****** (****** **** ******* **** the ****** *** Few ***** ************* **** introduced ** ****** ** this ***** *****.
Physical ********
*** ***** ** ****** is ******* ** ************ to ***** ****** ******, such ** *** ********* shown *****.

*** ****** ** ********** smaller **** ****** *** to *** ******** ** its ******** ***** ****** the ****** ******* ** surrounding (***** *****), ***** presents ******** ************ ****** discussed *****.

Installation ******
***** *** *** *** installation *********** ******* *** Dahua ****** *** ******:
- ******** ***** *********: ***** turrets' ******** ***** *** concealed ***** *** ****** body, ******* **** * security ***** **** ** loosened *** *** ****** disassembled ** ****** ****. By ********, ********* *** Uniview ****** ******** ***** are ********** ****** ** removing * **** **** on *** ******* ** the ******.
- *** ***** ********: *** Dahua ****** *** ** disassembled ****** ** ********* a ****** *****. ** Hikvision ******, * ********* clip ***** *** ****** shroud ** *** ****.
******* ** ***** ******, Dahua ******* *** ** more ********* ** ******* as ******** ******** ****** must ** *******, *** they *** **** ******, as **** ****** ** unscrewed **** *** **** without ************* *** ******.
** ****** ***** ****** in **** *****:
Even ************/************* *****
*** *******'* ************ ******* was ****, ************ ***** to *** ***** ** the *** ******* **** subject ************.

*******, *** ******* *** not **** ***** ** its ********* *** ** range, **** *** ****** weak ** **** ~***', shown *****.

*** ********** ***** ***** the ** ******* ** both *******, **** *** Dahua ******, *** **** even, ***** ********* *** * hot ****** *** ****** edges.

Low ***** ***********
******* ** *** ****** IR *** ***** ******* did *** ****** **** the ******** ************ **** in *** ********* ****, but ******* ******* **** slightly ******** ** ********* noise.

******* **** *** *******, at ~**' ********/~** ***, the weaker ** ** *** Dahua ****** ** **** noticeable, ** *** ******* is **** ********* ** discern ** *** ***** model *** ***** ******* displayed ** *********.

*******, ** ~**' ********, the ******* ** ********* to ****** ** *** Dahua ** *****, *** still ********** **** ** see ** *********.

Edge ** ***/**** **********
** ********* *** ***** of ********** ** *** edge ** *** **** we ****** **** *** subject ** *** ****** of *** *** ** well ** ** *** edge. *** ***** ***** shows ***** *** ******* was ********** ****** *******.

*** ********** ***** ***** subject ******* ** *** center *** **** ** the ****. ** *** edges, *** ******* ** ********* making *** ****** ****** and ******* **** ** does ** *** ******, **** some **** ** ****** on **** *** ******* and **** *****.

**** **** ** ***** not ******* **** ******* between *** *** ******* in **** ****, ** Dahua **** * *** lens *** *** ********* 2385 *.***.
Full ***** ***** *******
******* ** **** ***** are ******* ** **** cameras, *** ******** *** moderately ******* ******** ** Hikvision.

*******, ** ******* *****, ~60', *** ***** ****** provides **** ******* ****** of *** **** *****, with ********** ** **** 4 **. * ** the ********* ****.
WDR ***********
** **** *** ***********, we **** *** ******* in *** **** ******, warehouse ***** **** **** door *** **** ******* entry/exit ****.. **** **** the ***** ** ****** provides ******* *** ***** the ********* **** ** a **** *** ******.
*****, ** *** ********* scene, ***** ****** ****** from ~**** *** ******* to ~*** *** ******.

** **** *****, *** cameras ******* ******* *********** indoors *** ***, **** the ********* **** ****** a ****** ********* ******* bright *********, **** ******* displaying ********** *******, *** similar ******* *******. ** the ****** **** ****** the ****, ******* *** roughly *******.

***** ** ** **** door, *** ***** ** camera ******* **** ******* overexposure ** *** ******* moves **** ******* ** in, ***** *** ********* camera ***** * *** seconds ** ******, **** shows ****** ******* ** the *******.
Bandwidth **********
*** ***** ******* ******** Smart *.***+, *** ****** version *******'* ***** *****. *** ** ******'* bitrates **** *********** **** Hikvision's, ********** ***** ** a **** *** ******* scene, *** ********** ****** in *** *****. *******, **** that *** ******* *** Dahua's *.*** ****** ** limited (*** *****).

***** *.***+ ******** **** lower **** ***** *.***+ in *** ****** ******, by ****** **% ** daytime ******, *** ~**% in *** *****.

VMS *******
** *** **** ** testing, * ****** ** ***** which ******* *.*** *** not ******* *** ******* (Exacq, *******, *** *********). Both ******* *** ********* list ******* *** ***** Dahua *.*** *******, *** were **** **** ** utilize *.*** ******* ** our *****. ***** **** not **** ******* *** any ***** *.*** *******, but **** *.*** ********* worked ******* ****** (****** VMD, ****** *************, *** other ******** *** **** when ***** **).
Test **********
*** ********* ******* **** used ** **** ****:
- ***** *******: *.***.***.* ***** 2017-01-05
- ********* **-**********-*: **.*.* ***** 170124
Comments (5)
David Delepine
IPVMU Certified | 08/02/17 09:57pm
Maybe I missed it but I didn't see any mention of the built in mic? I was curious to see how you rated the quality of the audio and if it works with any of the VMSes. We have only installed them with Dahua NVRs and have little experience with other audio surveillance (except for a single omni directional Louroe mic we did a few years back) for comparison.
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Undisclosed #2
H.265 finally delivering > 50% savings over H.264?
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