Best sprinkler for small 5m x 3.5m lawn

Hi I've just planted grass seed in the back garden and need to buy a sprinkler and timer as going on holiday shortly.

Can someone please tell me the best cheap sprinkler to accurately cover the lawn area, which is 5m x 3.5m. The hose water pressure is low.

I don't want the spray entering the neighbor's garden so accuracy is important.

Also, a cheap good quality timer.

Many thanks,