A rain sensor is designed to shut down a sprinkler/irrigation system when it rains, thus conserving water. A freeze sensor will trigger the main timer to shut off when the temperature dips below a pre-set temp, thus avoiding any possible damage to the system due to extreme cold.
City Backflow Testing conducts all irrigation backflow testing in compliance using the USC 10th Edition. We are pros doing a pro job. If peace of mind is what you seek then City Backflow Testing should be the call you make.
