1. STAFF GAGE - used for a quick visual indication of the surface level in rivers, streams, lagoons, reservoirs, etc.

2. FLOW METER - The Valeport 'Braystoke' Model 001 and Model 002 flow meters provide a reliable method of monitoring flow in a variety of environments, including salt, fresh and effluent water, from shallow streams to tidal waterways. The meters benefit from the design of the impeller bearings, which give low threshold velocity and consistent performance.

3. CURRENT METER - instruments designed to measure the velocity of moving water in a river in order to determine its discharge, also referred to as stream flow.

4. WATER QUALITY SONDE - Water quality instrumentation for simultaneously measuring up to 13 different parameters: pH, temperature, dissolve oxygen, conductivity, salinity, turbidity, total dissolve solids (TDS), water depth, oxidation reduction potential (ORP), seawater specific gravity and up to three specific ions.

5. TIPPING BUCKET RAINGAGE - measures the character and amount of liquid precipitation. Determines rain rate.

6. The AquaTrak 5000 sensor - provides accurate measurement of absolute liquid level in all weather conditions. Designed for rugged, unattended operation, the sensor has been field proven in adverse environments around the world for hydrology, oceanography, and hostile environment chemical and nuclear tank control systems.

7. Greenspan Electrical Conductivity Sensors - provide highly accurate conductivity measurements in a wide range of hydrological applications. Exceptional reliability and chemical resistance are guaranteed by a state of the art toroidal measuring system. Advanced microprocessor technology provides highly accurate temperature compensated measurements.

8. OSI’s ORG (Optical Rain Gauge) is a superior tool for rain measurement. The ORG is the only instrument available to measure true rain rate.

9. Water Level Meter - Accurate markings each 1/100 ft. or millimetre, traceable to national standards, sensitivity adjustable to conductivity, shielded probes to avoid false readings, reliable permanent, heat impregnated markings, non-stretch stainless steel conductors, long life rugged, corrosion proof components, strong, flexible tape, is easily spliced.

10. The Los Gatos Research (LGR) Liquid Water Isotope Analyser provides measurements of δ18O and δ2H of water in liquid and discrete vapor samples with unsurpassed precision and speed. Now,

measurements of δ18O and δ2H are reported at the unmatched speed of 1080 injections per day.