Hello, I hope this is the right place to ask this question.

I had the 15 year old 3 zone sprinkler system in my new house repaired and everything is working well except for the timer and rain sensor. The sprinkler company wanted $300 plus labor to install an updated timer and rain sensor, so I'm going to do it myself. When we have water restrictions, I am limited to watering on odd numbered days, but never on Mondays. Do you have any recommendations on a relatively affordable timer that would allow me to set one program to do that and an accompanying rain sensor?

Thanks.