This listing is for the Labtec SciLog Tandem 1081 ChemTec Peristaltic Pump with Tandem Model 1081 Head The unit is in full working condition and is ready for immediate use Dual‑head design Equipped with two independent pump heads, allowing simultaneous delivery of two separate fluid lines or higher combined flowrate. Flow & pressure range Capable of delivering metered flow in applications like bioreactors, diafiltration, titration, and general chemical dosing. It handles pressures from 0 up to approximately 60 psi. Precise liquid metering Designed for volumetric and mass flow measurement tasks, maintaining consistency in dosing/reagent addition. Control interface Includes an RS‑232 serial interface for external control via software or integration into automation systems Use Cases Bio‑processing & fermentation: Automated nutrient or reagent addition in tandem line setups. Filtration processes: Controlling flow through membranes in diafiltration or tangential flow filtration. Titration and pH control: Precise dosing of acids/bases based on sensor or feedback-controller inputs. General lab fluid handling: Pumping corrosive or viscous liquids safely without contamination, thanks to peristaltic tubing.