Dosatron Etatron eOne Micro-Doser Kit – 1 1/2 Inch (Hi-Flo)

The Dosatron Etatron eOne Micro-Doser Kit (1 1/2 Inch, Hi-Flo) is an ultrasonic injection system designed for accurate delivery of super-concentrated nutrient and chemical solutions into irrigation lines. Equipped with a flow sensor and pressure relief valve, it works as a standalone doser or alongside a Dosatron Water-Powered Nutrient Delivery System, making it a flexible choice for commercial and large-scale hydroponic fertigation.

Dosatron Etatron eOne Micro-Doser Kit Specifications

Key specifications for the Etatron eOne MF Ultrasonic Micro-Doser Kit, 1 1/2 Inch Hi-Flo variant. The 1 1/2 inch port size is the high-flow configuration intended for larger irrigation lines and higher water throughput than the 3/4-inch Lo-Flo model.

Why Choose the Dosatron Etatron eOne Micro-Doser Kit

The eOne MF Micro-Doser addresses a specific need in commercial fertigation: precise injection of highly concentrated additives that standard proportional dosers may struggle to meter accurately at very low dose rates. Here is what makes this kit a practical choice for a professional installation:

• Ultrasonic injection technology: The MF (micro-flow) ultrasonic mechanism is designed specifically for super-concentrated products, giving more repeatable injection accuracy at lower volumes than peristaltic or venturi-based systems.
• Integrated flow sensor: The included flow sensor monitors water movement through the line, allowing the doser to trigger and meter in proportion to actual flow rather than running on a fixed timer — reducing waste and improving consistency across variable-demand irrigation schedules.
• Built-in pressure relief valve: Protects downstream equipment and plants from pressure spikes that can occur when a line closes suddenly. This is particularly important in large multi-zone systems where solenoid valves open and close on a schedule.
• Dual operating modes — standalone or paired: The eOne kit functions independently as a complete injection system, or it can be integrated alongside a Dosatron Water-Powered Nutrient Delivery System for a two-stage approach where the water-powered unit handles the base nutrient load and the eOne adds micro-dosed additives or pH adjusters.
• Hi-Flo 1 1/2-inch port: The larger connection size (versus the 3/4-inch Lo-Flo model) accommodates higher water flow rates, making this the correct variant for main lines serving multiple zones or large-scale greenhouse benches rather than a single small drip circuit.

Best Uses for the Dosatron Etatron eOne Micro-Doser Kit

This kit is a purpose-built tool for operations where standard dilution-based dosing is not precise enough, or where the dosing point sits on a high-flow main line. Typical deployment scenarios:

• Commercial greenhouse fertigation: Install on the main irrigation header to inject pH adjusters, concentrated humic acid, or bloom stimulants into the feed water before it reaches drip lines or flood tables. The Hi-Flo port handles the throughput volumes a multi-bay greenhouse demands.
• Super-concentrated additive injection: Products like silica, concentrated phosphorus, or specialized trace-mineral blends are often formulated for very high dilution ratios. The ultrasonic micro-dosing mechanism is calibrated for these low-volume, high-dilution applications.
• Pairing with an existing Dosatron system: Growers already running a Dosatron Water-Powered Nutrient Delivery unit can add this eOne kit downstream to handle secondary additives without needing a separate injection point or additional pump infrastructure.
• Facilities requiring flow-proportional dosing: Because the onboard flow sensor triggers injection based on actual water movement, this system is well-suited for facilities with variable irrigation schedules or pressure-compensating drip lines where timed-pulse dosers produce inconsistent results.
• Large-scale hydroponic reservoirs and recirculating systems: Where precise EC management across a high-volume reservoir benefits from small, accurately metered additions of concentrated stock solutions rather than bulk mixing. Pair the system with an EC monitoring probe to verify dosing accuracy at the reservoir.

Compatibility

The Etatron eOne MF Micro-Doser Kit is built around standard North American pipe threading and connects with a 3/4" NPT fitting. The 1 1/2-inch main-line port accommodates the higher flow rates typical of commercial irrigation headers. Key compatibility considerations:

• Pipe threading: 3/4" NPT (National Pipe Thread) — compatible with standard PVC, CPVC, and stainless fittings commonly used in greenhouse and hydroponic plumbing.
• Dosatron Water-Powered Systems: Designed to integrate directly with Dosatron proportional dosers. The eOne can be installed in series on the same main line or plumbed to a secondary injection port on an existing Dosatron unit.
• Fertigation controllers: The flow sensor output is compatible with most commercial fertigation controllers that accept pulse or analog flow signals, enabling automated, controller-driven dosing without manual adjustments.
• Chemical compatibility: Intended for injection of concentrated liquid fertilizers, pH adjusters, and specialty additives. Consult Dosatron’s documentation for specific chemical compatibility guidelines before using with oxidizing agents or highly acidic stock solutions outside normal nutrient program ranges.
• Filtration recommendation: For optimal doser longevity when running particulate-containing stock solutions, a mesh inline filter on the injection inlet is recommended. Consider a 1 1/2-inch inline filter with 200-mesh screen sized to match this kit’s main-line port.

Sources & Further Reading