SeaFET™ V2 Ocean pH Sensor

The SeaFET™ V2 is the next generation pH sensor, upgraded from the original SeaFET™. The sensing element is an ion sensitive field effect transistor (ISFET). This class of device has been used for pH sensing in industrial processes, food processing, clinical analysis and environmental monitoring. The advantages of the ISFET include robustness, stability and precision that make it suitable for ocean pH measurement at low pressure. The ISFET potential is measured against two separate reference electrodes: one bearing a liquid junction (internal reference) and a solid state reference electrode (external reference), providing the user with the ability to assess instrument performance and ultimately achieve a greater understanding of the state of acid/base equilibria in seawater.

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Key Features Specifications Resources Content

Key Features

Solid state ISFET sensor
AgCl external reference electrode
Calibrated usin natural seawater
Internal logging and scheduling
Internal battery pack

Parameters Measured

Specifications

Specification	Value
Communication Options	RS-232
Depth Rating (Meters)	50m
Power Source	Internal , External
Housing Material Options	Pvc
Onboard Memory	Yes
Connector	MCBH-8M
Sampling Rate	10 Hz
Memory Capacity (Samples)	4 GB
Power Consumption	340-400 mW
Accuracy	± 0.05 pH
Software	UCI
Resolution	0.0001 pH
Biofouling Protection	Optional