RainDat PalmOS - Version 2.0a For lawn sprinkler irrigation professionals. Right in your pocket, have access to all the performance data on popular Rain Bird® sprinkler nozzles: radius at various pressures, flow rate, etc. All spray, impact, rotor nozzles and Xerigation data Features both English and Metric Measurements10-day free trial version available here has some data buttons deactivated. Register to receive a registration key to unlock it.