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Microsens - Model MSFET3330 -pH-ISFET Sensor
The MSFET3330 is a pH sensor featuring ion-selective field-effect transistor (ISFET) technology, designed for precise measurements in various applications. Microsens is expanding its MSFET line by incorporating ion-selective membranes on the MSFET3330, enabling selective measurements of ions such as Potassium (K+) and Nitrate (NO3-). Future enhancements are planned to include Sodium (Na+) and Phosphate (H2PO4-) measurement capabilities. Microsens has also engineered a miniature reference electrode called MSREF, tailored to work seamlessly with the MSFET3330. These options can be combined into a unified sensor head, maintaining the standard dimensions, but with customizable shapes available. The MSFET3330 requires dedicated interface electronics for operation and data acquisition. Microsens provides a variety of interface options catering to diverse requirements, supporting comprehensive measurement kits for specialized needs.
The ISFET sensing element is packaged onto a miniature PCB for easy handling. Different shapes and sizes of the packaging are available on demand.
Characteristics
- small size
- wide range of applications
- requires interface electronics and a reference electrode
Key Specifications
- Typical pH range: pH2 - pH12
- Typical sensitivity: 55mV/pH
- Response time: 90% signal level: < 5 sec
Functionalized Ion-Selective ISFET sensors
Microsens is also extending its MSFET line througn the addition of ion-selective membranes onto the MSFET3330 sensor. Currently, ion-selective ISFET sensors available at Microsens include Potassium (K+) and Nitrate (NO3-) selective MSFET. Other ion-sensitivities such as MSFET for the measurement of Sodium (Na+) and Phosphate (H2PO4-) are under development.
MSREF Miniature reference electrode
Microsens has developped a miniature reference electrode to work with the MSFET3330. More information can be found in the MSREF Datasheet.
Combined sensor head
MICROSENS also offers solutions combining the MSFET3330 and the MSREF into one sensor head. The standard solution has the same dimensions as the MSFET3330, but different shapes and sizes are available on demand.
MSFET Interfaces
The MSFET3330 requires a specific interface electronics to drive the sensor and read the sensor output. Microsens offers a range of interfaces with different options. Details on the different interfaces can be found here.
ISFET Measurement Kit
MICROSENS offers a measurement kit for the MSFET 3330 pH sensor.
The kit consists of the following items:
- packaged MSFET3330 sensor element
- MSFET3330 interface electronics (see MSFET Interfaces )
- miniature Ag/AgCl reference electrode (MSREF)