JESON

you can create different access authority of users to solve your problem.

hi ,Janice you can supply your company map , i can design the solution for you .

HD-SDI the image is more better than AHD CVI AND TVI ,,, near IP camera HD camera . now HD SDI solution is very easy to install for you too.....

ip camera need be connected to pc or nvr , then connecting a nas

the camera is cluding 3G sim card and sd card for recording , you can preview the image and playback by mobile on internet . off cause 3g fee is acording locate communication operator. nothing more ! if you intest this solution , i will explain more detail . my skype:reggery

your wifi camera , i have checked . that is not 3G/4G camera , only wifi which can be used with router at home , so it can not satisfy for you . I konw one product with 3g or 4g , similar like this , which is suitabe for you .

you can switch the lanuage to spanish in the system , check the operation guide. nomally the product donnot have spanish mannul

maybe cannot make the preset , except home ptz camera

analog dvr + analog camera so so old products , the image is so bad , but the price is very cheap .

Simple solution : ip camera(with sim card ,sd card) + batterry

please reference as below:

Please reference

HK IP camera support onvif which is the international protocol ， nomally they can be used on NVR that supports onvif.

Comprehensive consideration of price and image , Sequence of order as below: AHD ,CVI,SDI