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The Hydrolab Conductivity sensor uses four graphite electrodes in an open cell design to provide extremely accurate and reliable data with virtually no maintenance.
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The Hydrolab temperature sensor is a 30k ohm variable resistance thermistor. The temperature sensor is included with every Hydrolab sonde.
High-stability, custom-made pressure sensors with four range options.
Hydrolab's Self-Cleaning Turbidity sensor measures from 0 to 3000 NTU and includes a user-programmable cleaning system to remove any fouling or debris that could otherwise affect readings.
Hydrolab's 4-Beam Turbidity sensor is compliant with 4B-GLI Method 2 and perfect for profiling or spot-check turbidity measurements.
Second generation Hach LDO sensor technology
The Hydrolab Dissolved Oxygen sensor is based on a standard Clark Cell design, which is EPA approved, and has been trusted for over 30 years.
Hydrolab provides the most accurate Chlorophyll a sensor available on a multiprobe.
Hydrolab provides the most accurate Blue-Green Algae sensor available on a multiprobe.
Hydrolab provides the most accurate Rhodamine WT sensor available on a multiprobe.
All of our marine instruments and systems, meteorological instruments, calibration standards and rental equipment can also be found in our new product catalogue
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Depth/Pressure Sensor
pH/ORP Sensor
Temperature Sensor
Chlorophyll a Sensor
Self Cleaning Turbidity Sensor
Li-Cor Ambient Light Sensor
pH Sensor
Rhodamine WT Sensor