Can anyone recommend a basic, no frills baby monitor that we can use in our camper van? A night light one would be a bonus but not necessary. Other than that just cheap and both units able to run on batteries. We would like to be able to shut the door up once he is asleep and then treat ourselves to a glass of wine and a campfire! My little boy is a tinker and could possibly get up to all kinds of mischief if he wakes up without our knowing. Although only planning to sit outside the van I'm thinking that possible noise from neighbours, the sea, conversation etc would mean we couldn't hear him and the tinted windows mean we couldn't watch him through them... And if we leave the door open no chance of him staying asleep and us getting any peace and quiet!