1. High precision Digital Dosing Pump; Timer function; ppm proportional dosing; statistics; Password; Input ON_OFF (remote control). Constant flow rate manually adjustable, proportional flow rate according to an external analog (4- 20 mA) or digital signal (water meter).2. Casing made of high-impact PP, Protection degree: IP 653. Flexible Power Supply 100-240 Vac 50/60 Hz4. The pump can be wall mounted or installed on top of a tank.