The Hach AS950 Standard Portable Sampler features a standard portable base, US-standard 115 VAC power input, and includes a discrete 24 × 1 L polyethylene bottle kit with distributor arm and retaining brackets. It weighs approximately 12.7–15 kg depending on bottle configuration and features a full‑color TFT display, menu-driven interface, and USB connectivity for data logging and program transfers. Users can swiftly switch between composite and discrete sampling in the field. Maintenance is intuitive: tool‑free access to pump tubing and desiccant packs, and a transparent pump cover enables quick inspection. Widely used in stormwater, industrial pretreatment, groundwater, and wastewater sampling applications.