@EMPIRETECANDY cameras are Dahua OEM and work well with the Lorex system as Lorex is a Dahua OEM as well (albeit stripped down versions of Dahua cams and the cameras Andy sells). Axis or other brands could be problematic as it is best to match brands of NVR and cameras. Forget about the Reolink - total trash and won't work with the NVR.
Many people here use Andy's cameras with a Lorex or Amcrest system without a problem since they are all Dahua. They work just fine with the Lorex app or Amcrest NVR app.
Keep in mind the Lorex all in a box kit is a very stripped down version with less than ideal MP/sensor ratios among other things, like bandwidth limited NVR and lesser quality. It is built cheap to sell cheap.
When we had a thief come thru here and get into a lot of cars, the police couldn't use one video or photo from anyone's system but mine. Not even my other neighbors Costco Lorex $1,300 8MP system provided useful info - the cams just didn't cut it at night.
His system wasn't even a year old and after that event has started replacing with cameras purchased from @EMPIRETECANDY here based on my recommendation and seeing my results. Andy's cameras were literally plug-n-play with the Lorex NVR. By the time we got inside, the cameras were already showing on his monitor. He is still shocked a 2MP camera performs better than his 4k cameras and he cannot figure out why- it is because his 8MP Lorex system was on the same size sensor as the 2MP so his cameras need over 4 times the light. Sensor size and optical zoom is more important than MP.
See this thread I put together demonstrating the value of focal length over MP, complete with camera recommendations based on distance to an object with which you would want to IDENTIFY (and all the cameras should work with the Lorex NVR).
The Importance of Focal Length over MP in camera selection
At the urging of several folks here, I created a thread to show the importance of focal length and how focal length can be more important than megapixels (MP). I mentioned some of this in the post regarding The Hookup’s latest video demonstrating different cameras, including one sold from a...ipcamtalk.com
this has been a very help forum. I replaced one of my cameras with one suggested….plugged into Lorex NVR and it’s not as plug and play as I hoped. It’s recognizing the camera but it’s a black screen and shows what the attached pic shows. Any help would be massively appreciated!