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SeaFET™ Ocean pH Sensor

Product Name:SeaFET™ Ocean pH Sensor
Product Description:The SeaFET™ Ocean pH sensor is an ion selective field effect transistor (ISFET) type sensor for accurate long-term pH measurements in salt water.
Area of application:(Long term) water monitoring
Year of initial development::
Year of latest version:
Field of Use:- Ocean Acidification research - Coral reef physiology and sensitivity analyses - Near-shore biological research - Environmental monitoring
Sensor type:PH
Hardware/software requirements 
RAM memory [GB]:
HD [GB]:
Operating System:
Dedicated software:
Processor (CPU):
Power supply and communication 
Power supply min. [V]:6
Power supply max. [V]:18
Operating current [Amp]:0.0011
Output interface {eg. rs232}:RS-232, USB
Output format {eg. ascii}:
Physical Properties  
Weight in air [kg]:5.4
Weight in water [kg]:0.1
Width [m]:0.114
Length [m]:0.508
Min. operating temperature [°C] :0
Max. operating temperature [°C] :50
Max. operating depth [m]:50
Mounting possibilities:
CO2 sensor specifications 
CO2 sensor type:
Range [ppm]:
Accuracy [%]:
Resolution [ppm]:
Initial accuracy {±% of reading}:
Oxygen sensor specifications 
Oxygen sensor type:
Response time [sec]:
Range [μatm]:
Accuracy [μatm]:
Resolution [μatm]:
Initial accuracy {±% of reading):
Methane sensor specifications 
Methane sensor type:
Range [μatm]:
Accuracy [μatm]:
Resolution [μatm]:
Initial accuracy {±% of reading):
Turbidity sensor specifications 
Turbidity sensor type:
Range [NTU]:
Accuracy [NTU or % of reading]:
Resolution [NTU]:
LED wave length min. [nm]:
LED wave length max. [nm]:
PH sensor specifications 
pH sensor type:Ion-selective. 0.02 pH accurate, stability: 0.003 pH/month
pH reference sensor:
Range [pH]:6.5 to 9.0 ph
Accuracy [pH]:0.02
Resolution [pH]:0.001
Temperature compensation:
Pressure sensor specifications 
Pressure sensor type:
Range [bar]:
Line pressure Max [bar]:
Accuracy [% of span]:
Resolution [% of span]:
Drift [% for time]:
Nitrate sensor specifications 
Nitrate sensor type:
Range of detection max. [µM]:
Accuracy [± µM]:
Initial accuracy {±% of reading}:
resolution [µM]:
More information 
Distinguishable features:Continuous mode – samples at up to 10 Hz. Scheduled mode – operates on internally stored schedule. Polled mode – responds to data logger commands. Sample averaging – calculates mean of 1 – 100 samples

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