I use an array of Foscam cams,inside & outside and they notify my phone with motion detectors. Some are wireless and some are direct wired. The pics on the phone are excellent, on the computer much better. Some save to a cloud, others on a SD card.
2008 Mini Cooper Clubman (toad)
2000 Mercedes ML320
1994 Dodge 2500 Cummins
1999 Ford F53 V10 Coachman Motorhome 34ft