The PVS4150C is a portable, battery-operated water sampler designed for easy transport. It deposits its water samples into one nine liter container. The PVS4150C includes a programmable controller with 16-key intuitive touch pad. The controller can accept a pulse input (e.g., rain gage), a 4- to 20-mA signal (e.g., flow meter), or initiate a sample on a timed basis. The sampler can also be interfaced with our data loggers to measure a variety of sensors, as well as control the sampler based on time, event, or measured conditions.