Netro allows one sensor to monitor up to 3 zones but you will need to make sure the zones have similar environmental conditions. You can go to Settings->Sensors, select a sensor, go to Zones and select the zones you would like to monitor.
Reason they are not watered in same way. One zone will be water in 5 hours second is in 2 days . I set both to frequent smart program .
Netro currently doesn't support the feature to treated multiple zones as the same physical area and water them exactly the same, which we may support later.
As your zones have the same configurations, Netro's smart schedules should be almost identical for all zones. It is totally fine to water zones in different days. We make sure the moisture level in the a reasonable range for all zones.