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Comparison Dahua DH-IPC-HFW2431TP-ZS vs Dahua DH-IPC-HFW2431T-ZS

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Dahua DH-IPC-HFW2431TP-ZS
Dahua DH-IPC-HFW2431T-ZS
Dahua DH-IPC-HFW2431TP-ZSDahua DH-IPC-HFW2431T-ZS
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Main
Motorized lens.
Mountoutdooroutdoor
Body typebeamedbeamed
Connection
LAN
LAN
Camera features
Design and features
PoE 802.3af
light sensor
motion detection
mobile app
IR illumination
card reader /microSD before 128 GB/
PoE 802.3af
light sensor
motion detection
mobile app
IR illumination
card reader /microSD before 128 GB/
Number of LEDs44
Illumination range60 m60 m
Matrix
Matrix typeCMOSCMOS
Matrix size1/3"1/3"
Number of megapixels4 MP4 MP
Video resolution2688x1520 px2688x1520 px
Frame rate25 fps20 fps
Minimum illumination0.03 lux0.03 lux
Aperturef/1.4f/1.4
Signal to noise ratio50 dB50 dB
Backlight compensationWDR+BLCWDR+BLC
Lens
Focal typevariablevariable
Focal length2.7 – 13.5 mm2.7 – 13.5 mm
Horizontal viewing angle104 °104 °
Vertical viewing angle72 °72 °
General
Video compression formatH.264, H.265, H.264+, H.265+, MJPEGH.264, H.265, H.264+, H.265+
Power source12 В
12 В /maximum consumption — 12.6 W/
Power consumption12 W
Operating temperature-30 °C ~ +60 °С-30 °C ~ +60 °С
Maximum humidity95 %
Protection levelIP67IP67
ONVIF
Materialmetal
Vandal-resistant body
 /IK10 (option)/
Dimensions244.1x79x75.9 mm244.1x79x75.9 mm
Weight815 g815 g
Color
Added to E-Catalogaugust 2018january 2018

Frame rate

The maximum frame rate in the video captured by the camera.

The higher the frame rate, the clearer the image, the less noticeable blurring when moving in the frame (especially fast). On the other hand, this indicator affects the amount of information recorded during shooting, as well as the cost of the camera itself. Therefore, it makes sense to specifically look for a video surveillance camera with high-speed shooting(45 fps and higher) only if a clear recording of fast moving objects is important to you.

Video compression format

The video compression format used by the camera.

Compression is used to reduce the file sizes of captured video; different technologies can be used for this — the so-called codecs, their list is given in this paragraph. From a practical point of view, compatibility with external recording and playback devices primarily depends on the supported codecs. If you plan to use a computer as a recorder / player, you can ignore this list: modern PCs and laptops usually support a very extensive list of formats, and in extreme cases, the missing codecs can be installed separately. But if we are talking about specialized registrars, individual players (like home media centers), etc. — codec compatibility should be clarified further. So, if the advanced modern H.265 standard is very widely supported nowadays, then the more specific H.265+, originally created for surveillance systems, is much less common even in specialized equipment.

Power consumption

The power consumed by CCTV cameras during operation. Knowing the indicator of energy consumption, you can, for example, calculate the battery life of equipment from an uninterruptible power supply or choose a suitable “uninterruptible power supply”. Also, with the support of PoE technology, it is worth considering the power consumption when choosing a PoE switch or PoE adapter.

Maximum humidity

The highest relative humidity at which the camera is able to operate normally, without failures and breakdowns, for an unlimited time.

Modern electronics tolerate low humidity well, but high rates affect it negatively — with a long stay in such an atmosphere, moisture can condense on certain parts of the structure and various unpleasant consequences, from corrosion to short circuits and fires. Therefore, you can use the camera effectively and safely only in conditions where the humidity does not exceed the maximum recommended value specified in the specifications. At the same time, we note that many devices are able to endure short-term (up to several hours) exposure to high humidity without consequences.

Material

The main material used in the construction of the camera body.

— Plastic. Inexpensive and at the same time quite practical material. Plastic is light, quite strong (not as strong as metal, but still quite sufficient for most cases), chemically inert (and therefore not susceptible to corrosion and insensitive to moisture), and also has a relatively low thermal conductivity (which provides additional protection for extreme temperature fluctuations). Due to all this, this material is very popular in indoor chambers (see "Usage"). At the same time, it is somewhat less suitable for outdoor work.

— Metal. The main advantage of metal, in comparison with plastic, in the case of surveillance cameras is high strength and reliability. This allows you to use it even for street models that work in difficult conditions and must have a certain anti-vandal resistance (at least not immediately “give up” when trying to break or break). At the same time, such material is much more expensive, and therefore less common.

Vandal-resistant body

Ruggedized housing providing enhanced protection against damage attempts.

The specific degree of strength may vary. For example, many manufacturers use the IK standard for impact resistance. The highest rating in this standard is IK10, providing protection against impact with an energy of up to 20 J, which corresponds to a 5 kg load falling from a height of 40 cm; more detailed information on IK can be found in special sources. At the same time, cameras that do not have IK certification can also be positioned as vandal-resistant.

Note that even the most vandalism-resistant housing does not provide absolute protection against damage. However, this feature, anyway, significantly complicates the attacker's task and may even force him to give up trying to permanently spoil the camera. And the purposeful removal of the camera from the system turns out to be a rather difficult and long matter. And in some models, the increased strength of the case can be combined with other features — for example, a sensor that sends an alarm when attempts are made to damage the camera.
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