Unidata offers a wide range of instruments to suit the measurement of conductivity, evaporation, water depth and temperature. In addition to those water instruments, Unidata also offers Starflow QSD ultrasonic Doppler velocity and depth SDI-12 Instrument.

For shallow water (up to 20 metres), the full range of Hydrostatic Water Depth Probes 6542D will provide reliable and accurate measurements. For a wider range of water depth (up to 65 metres) and higher data accuracy, the Precision Water Level Instrument 6541C, available in several different configurations, offers an excellent solution. For water quality measurement, consider using the Starflow QSD with EC 6537A, the pH and ORP Probes 6528 or the dissolved oxygen probe 7422