Description
Ready-to-run 4-channel high-flow dosing — scalable and quiet
The GHL Doser 3 Maxi SA+EXT Set combines one Stand-Alone (SA) and one Extension (EXT) unit for a 4-pump, high-capacity dosing solution. The SA operates completely independently with integrated LAN, Wi-Fi, and USB for control via app, cloud, or PC software, plus sensor ports (up to 2× level, 1× temperature) for fully autonomous ATO and automatic water changes. The EXT adds two more pumps with identical performance and silent operation, connected via PAB (ProfiLux Aquatic Bus) for centralized control.
Highlights
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4 pumps total (2 per device), adjustable up to ~350 mL/min per pump
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Ultra-quiet 24 V stepper motors for precise, reliable dosing
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SA: Integrated LAN / Wi-Fi / USB, level (×2) + temperature sensor inputs, firmware updates over LAN/Wi-Fi
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EXT: seamless PAB connection to the SA for easy expansion
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Two stirrer outputs per device for pre-mixing solutions
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Scalable: expand further with additional EXT modules (up to 16 pumps with SA, or up to 32 when controlled by a ProfiLux controller), or connect later to a ProfiLux Controller
- Two separate units – stackable or side by side – for flexible placement that fits any setup and space constraints.
Why this set
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Money-saving bundle compared to purchasing separately
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Standalone from day one — no extra controller required
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Ideal for ATO/AWC and other large-volume dosing tasks, with room to grow later
Made in Germany – precision engineering and durable components ensure long-term reliability.
Color: Black or white
Dimensions (one device): 220 x 150 x 103 mm (without pumps)
