Free EC & Temperature Conversion Calculator ESS Earth Sciences handy EC calculator converts the analogue output of the EC1550 Electrical Conductivity and Temperature sensor into corrected EC. Our EC calculator can also be used with uncompensated output EC1500 sensors. To use the EC Calculator download… Read More »Free EC & Temperature Conversion Calculator
Electrical Conductivity – Water Quality Measurements Electrical Conductivity, electrolytes, ions, and salinity Electrical conductivity measured in Siemens (S) and represents a fluid’s ability to conduct electricity or pass an electrical flow. Temperature and concentration of free ions in the fluid determine electrical conductivity. Measuring the… Read More »Electrical Conductivity – Water Quality Measurements
Dissolved Oxygen Sensors – Why Dissolved Oxygen Matters. What is dissolved oxygen and why is it important? Dissolved oxygen (DO), measured in mg/L, is the level of non-compound oxygen dissolved in water, it is measured using a dissolved oxygen sensor or dissolved oxygen probe. It… Read More »Dissolved Oxygen Sensors – Why Dissolved Oxygen Matters.
Water turbidity – why it is an important water quality measurement. What is Turbidity? Turbidity is an optical feature of a liquid and a measurement of its clarity. Determining scattered light levels within a column of water indicates turbidity. It is an important measurement to… Read More »Water turbidity – why it is an important water quality measurement.
Greenspan PS and PR water level sensors What are water level sensors? Hydrologists use water level sensors to determine the depth of a body of water. While a metre stick will measure depth, their accuracy is insufficient for most studies. Many hydrological studies require data… Read More »Greenspan PS and PR water level sensors
GW50 Groundwater Nitrate Sensor Greenspan (the hydrological division of ESS Earth Sciences) are pleased to announce we are now a distributor of the HydroMetrics GW50 groundwater nitrate sensor. HydroMetrics are a division of the New Zealand based company Lincoln Agritech. Their groundwater nitrate sensor was… Read More »Affordable Nitrate Sensor
Battery powered logging sensors Greenspan now manufacture our range of water quality sensors as battery powered logging sensors. Our entire range of logging sensors can be powered by internal batteries giving you months of maintenance-free data logging. “Clandestine Monitoring” The batteries replace the requirement for… Read More »Battery powered logging sensors
Greenspan – stainless steel sensors for water quality monitoring. We now manufacture stainless steel sensors. Greenspan (now owned and operated by ESS Earth Sciences) has a history of manufacturing water quality sensors. However, traditionally the bodied have been made from plastics (acetal mainly). We also… Read More »Greenspan – stainless steel sensors for water quality monitoring.