The 4 zone Hydrologic Timer has higher flow valves. It also allows programming for individual days of the week. The new timer works with the Melnor Hydrologic Soil Moisture Sensor. Each zone can be independently programmed with up to 4 start times. No ex

The 4 zone Hydrologic Timer has higher flow valves. It also allows programming for individual days of the week. The new timer works with the Melnor Hydrologic Soil Moisture Sensor. Each zone can be independently programmed with up to 4 start times. No extra valse to buy. 25% larger screen then previous model. Retains programming through battery change. Manual rain delay. Grey/Black.