Question 1

What is the size of SD card that supports?

Accepted Answer

Here is a quote from Amcrest Tech Support:The max capacity of the mini SD card that the ProHD 1080P can take will be set at 64GB. That will be good for up to two weeks of continuous 24hr recording. If you set it to just motion, it will record at least 1 Month of just motion.You can find these Mini SD cards at Best Buy, Walmart, or any electronic store."

Question 2

can i have multiple cameras in m house

Accepted Answer

If you want multiple cameras, I suggest a surveillance software such as Blue Iris, which is the best bang for the buck. It's a great program which you purchase once (about $50) and can use with up to 26 cameras. I currently have 7 using this program with minimal problems. IMO, I would NEVER use a cloud service for anything.

Question 3

I'm interested in storing local recording on a memory card and need about 24 hours of continuous storage that I could review for security (32G card?).

Accepted Answer

To get 24 hours (or more) on the 32GB card, you will need to change the camera's video encoding settings.  By default, the camera is configured to encode the video at 4096Kb/s CBR, which should give you about 17 hours of recording time on a 32GB card.  CBR stands for Constant Bit Rate, which means that the camera will use all of the specified bitrate regardless of the video complexity/activity.  I recommend switching the mode to VBR (Variable Bit Rate) with a quality of 6 (the highest setting).  Since the video complexity will probably be low half of the time, this alone may be enough to get you 24 hours.  If not, lower the bitrate setting to 2048.  This should get you at least 34 hours.  You can lower this as much as you want.  If the video quality gets too rough at very low settings, lower the resolution or the framerate.  With a low bitrate setting and VBR, you could get days of footage on a 32GB card.While this camera has an above average playback interface that's great for reviewing footage, another way to fit more monitoring time on the card is to only record motion detection footage instead of continuous recording.  This works especially well in areas that see occasional traffic as opposed to continuous traffic.  You could end up with months of footage on a 32GB card depending on how active the monitored area is.Yet another possibility is to use a 64GB card.  I have successfully used 64GB cards in other cameras that only supported 32GB.  The camera is not the limitation; Windows is.  Windows is unable to format a 64GB card to FAT32, the format required by the camera.  If you buy a 64GB card, you will need to use special software to format it in FAT32, and then it should work in the camera.Here's a link to the calculator tool I used to calculate the above numbers: http://www.calctool.org/CALC/prof/computing/transfer_timeAmount of data = Card size (32GB)Transfer rate = Camera video bitrate (camera default is 4096 Kb/s; the lowercase "b" in "Kb" is important).Transfer time = (select hours) the amount of recording time you should get using that size card, and that bitrate at CBR.  VBR should increase your total recording time above this number unless the area being monitored has lots of activity 24-hours a day.

Question 4

Does the 4 hours free cloud recording means 4 continuous recording or can be a total of many small clips of event recording that adds to 4 hours?

Accepted Answer

I had the same question. I pulled the trigger and can tell you my findings... the ANSWER::: 4 hour cloud recording is 4 hours of continuous as well as clips. Anything past 4 hours whether full recording or small clips of events are inaccessible/deleted.

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Amcrest1080P WiFi Security Camera 2MP Indoor Pan/Tilt Wireless IP Camera, IP2M-841W (White)

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