I recently bought an electronic outdoor hose faucet timer. I live in a desert with 110+ degree summers and plan to water a few trees in my lawn with it. Is there any risk of leaving this device out in the heat? I would expect it to be designed for it (since it is for outdoor use), but probably for your "average" temperature locations. I could not find a hard yes or no answer on this when searching online.
My house faces the sun during sunrise and the hose/spout has no shade protection.
The hose timer I purchased is this one.