The Rain Bird ET Manager (ETMi) is a control device that enables weather-based management for irrigation controllers. The ET Manager does this by using current weather conditions to calculate evapotranspiration (ET). The Rain Bird ET Manager uses the ASCE ( American Society of Civil Engineers) Certified ET Equation endorsed by the Irrigation Association that recommends the inclusion of all weather parameters to calculate ET.

Typically, controllers irrigate on time-based (day, hour, minutes to water) schedules regardless of changing weather and landscape needs, whereas the Rain Bird ET Manager interrupts the controller only allowing it to irrigate when the soil moisture balance reaches user set levels. Managing the soil moisture balance, the ET Manager uses a programmed irrigation amount, and ET minus effective rainfall, to determine when watering is needed.

Enclosure for the ET Manager. Powder Coated Steel, Waterproof, 110 Volt Outlet Included.

Rain Bird is taking the convenience of the modular controller a step further with the ESP-LX Modular. Its Smart Features include Automatic Seasonal Adjust, which lets you program water adjustments by month for the entire year, and it makes the changes automatically. The ESP-LX also offers Contractor Default™a customized default program that can be recalled up to 90 days in the future. This allows a temporary schedule to be created for new seed or a fast fix. Additional features are Extra Simple Programming (ESP) and Automatic Seasonal Adjust.

The ESP-LX Modular is configurable up to 32 stations. It has four bays that are capable of using either 4-station or 8-station modules.

Smart Cartridge Compatible

ET Manager Cartridge Using real-time weather data from local precision weather stations, the ET Manager adjusts watering schedules to save 30-50% of water usage. It’s controlled entirely within the ESP-LX interface so there’s no need to program two separate devices. IQ Cartridge provides remote control for the Landscape Maintenance Contractor, Property Manager, or Public Agency managing multiple, single irrigation controller sites.

Safety and Economy. With reliable surge protection, ten year lithium battery backup, and non-volatile memory, your irrigation schedule is securely stored for up to 100 years.