We recently installed a stand-alone camera powered by solar with a built-in sim for a client who wanted to keep an eye on animals where there was no access to mains power or internet. It can be monitored through your phone using a simple-to-use app.
We were very impressed by the quality of this product by Reolink. Very clear image and audio both day and night. The camera moves 360° and has a built-in microphone and siren.
I've attached the link to the camera below with a video and some more pics in the comments.
Contact Richard on 07889843871 or send us a message for any enquiries.
https://amzn.eu/d/0upOEMu