I have the vtech monitors from argos they are £45
I have two angelcare ac327 (one for 4month old and one for 2.5 year old) and absolutely love it! Bluetooth, can pair two cameras to one monitor and has a movement sensor pad that goes under babies mattress for peace of mind
Baby sense, the quality is amazing
https://amzn.eu/d/0aaPec7h
If you want to splash out I recommend this one. Wish I had it for my eldest but now I have 3 under 3 it's a amazing! X
Baby sense. I went to take a photo to show you quality but then you couldn't see the brand haha. Will take a photo once the toddlers are up lol
Vtech vm923 is great. We're about to upgrade ours to the 2 camera