Not a stand alone unit.
The GHL Doser 2.2 EXT must be controlled via a ProfiLux Controller or a GHL Doser 2.x (Maxi/Standard) Stand Alone.

Its 24 V stepper motors allow precise dosing. The connection can be made via Wi-Fi or USB.
The system is expandable to a total of 16 pumps. The ProfiLux Aquatic Bus provides reliable and interference-free data transfer, even over long distances up to 100 m (300 ft.).

Technical specifications:
Color: Black or white
Dimensions: 220 x 150 x 75 mm (without pumps)

Scope of Delivery:
Dosing pump unit EXT (black or white), 50 cm PAB cable, power supply.