The Go Direct Potassium Ion-Selective Electrode (ISE) can be used to measure the concentration of potassium (K+) ions in aqueous solutions. It connects via Bluetooth® wireless technology or via USB to your device.
Description
Use the Go Direct Potassium Ion-Selective Electrode to wirelessly measure levels of potassium ions.
The versatile BNC connector allows students to easily replace the electrode when it expires or becomes damaged. You need only replace the electrode and not the entire sensor—lowering your overall equipment costs.
The Go Direct Potassium Ion-Selective Electrode has a combination-style, non-refillable, gel-filled electrode. Like all other PVC ISE membranes, the membrane on the ISE has a limited life expectancy. However, the replaceable module of ISE allows you to simply discard the used membrane module and replace it with a new one.
Rechargeable Battery—Ready When You Are
The robust rechargeable battery offers long battery life and provides always-ready operation when using the sensor wirelessly. Monitor battery life directly from our free Graphical Analysis™ 4 app or LabQuest 2 App. Should the battery run low, simply connect the sensor to the charging cable and keep on collecting—no interruptions or inconvenience to you or your students.
Wired or Wireless—The Flexibility to Choose
Our Go Direct sensors connect directly to your mobile device, Chromebook™, or computer using our free Graphical Analysis™ 4 app—no additional equipment or software purchases are necessary. Go Direct sensors can be used wired via USB or wirelessly via Bluetooth® wireless technology, allowing you to choose the solution best for your classroom or laboratory.
Note: We recommend that you do not purchase ISE replacement modules too far in advance of their expected time of use as degradation occurs while they are stored on the shelf.
Important: Ion-Selective Electrodes require good chemical technique and careful calibration to obtain accurate results; they are not recommended for middle school or elementary students.
Specifications
- Range (mV): ±1000 mV
- Range (concentration): 1 to 39,000 mg/L (or ppm)
- Accuracy: ±10% of full scale (calibrated 10 to 1000 mg/L)
- Interfering ions: Cs+, NH4+, H+, Ag+, Li+, Na+
- pH range: 2–12 (no pH compensation)
- Temperature range: 0–40°C (no temperature compensation)
- Electrode slope: 56 ±3 mV/decade at 25°C
- Electrode resistance: 100 to 200 kΩ
- Minimum sample size: must be submerged 2.8 cm (1.1 in)
- Connections:
- Wireless: Bluetooth
- Wired: USB
Compatibility Requirements
LabQuest 2Full SupportThe Go Direct® Potassium Ion-Selective Electrode is fully supported with LabQuest 2 (version 2.8.5), a standalone data logger with built-in graphing and analysis software.
Learn more about LabQuest 2 »
Compatibility Notes
- Wireless connection of this sensor to a LabQuest 2 requires a Go Wireless Bluetooth Adapter when used with some older LabQuest 2 models.
ComputersSoftware Interface Graphical Analysis 4 for ComputersVersion 4.7.1 No interface required Full support 1 LabQuest 2 Full support 2 3 Compatibility Notes
- For Bluetooth® connectivity, only computers running Windows 10 or Mac OS X 10.10 or newer are supported. The computer must also have a compatible Bluetooth 4.0+ radio.
- Connect this sensor directly to a computer or Chromebook via a USB or wireless Bluetooth® connection for best results. Alternatively, this sensor is fully supported when used with LabQuest 2 when LabQuest 2 is connected to a computer or Chromebook via Wireless Data Sharing.
- Wireless connection of this sensor to a LabQuest 2 requires a Go Wireless Bluetooth Adapter when used with some older LabQuest 2 models.
ChromebookSoftware Interface Graphical Analysis 4 for ChromeVersion 4.7.1 No interface required Full support LabQuest 2 Full support 1 2 Compatibility Notes
- Connect this sensor directly to a computer or Chromebook via a USB or wireless Bluetooth® connection for best results. Alternatively, this sensor is fully supported when used with LabQuest 2 when LabQuest 2 is connected to a computer or Chromebook via Wireless Data Sharing.
- Wireless connection of this sensor to a LabQuest 2 requires a Go Wireless Bluetooth Adapter when used with some older LabQuest 2 models.
iOSSoftware Interface Graphical Analysis 4 for iOSVersion 4.7.1 Graphical Analysis GW for iOSVersion 4.0.5 No interface required Full support Full support LabQuest 2 Full support 1 2 3 Full support 1 2 3 Compatibility Notes
- Connect this sensor directly to a supported mobile device via a wireless Bluetooth® connection for best results.
- iOS and Android™ devices can only connect to LabQuest 2 via Wireless Data Sharing.
- Wireless connection of this sensor to a LabQuest 2 requires a Go Wireless Bluetooth Adapter when used with some older LabQuest 2 models.
- Android
Software Interface Graphical Analysis 4 for AndroidVersion 4.7.1 Graphical Analysis GW for AndroidVersion 3.2 No interface required Full support Incompatible LabQuest 2 Full support 1 2 Compatibility Notes
- iOS and Android™ devices can only connect to LabQuest 2 via Wireless Data Sharing.
- Wireless connection of this sensor to a LabQuest 2 requires a Go Wireless Bluetooth Adapter when used with some older LabQuest 2 models.
Additional PlatformsYou can also use the Go Direct® Potassium Ion-Selective Electrode with these platforms:
Python
Javascript
LabVIEWWhat’s Included
- Go Direct ISE Amplifier attached to a Potassium Ion-Selective Electrode BNC
- Micro USB cable
- 30 mL bottle of High Standard solution with SDS (1000 mg/L K+)
- 30 mL bottle of Low Standard solution with SDS (10 mg/L K+)
- Short-Term ISE Soaking Bottle
Ordering Information
All prices are for U.S. educators.
Support
Resources
Contact Us
- Web: Online Support Form
- Email: support@vernier.com
- Phone: 1-888-837-6437
Warranty
5-year limited warranty (1 year on battery, 1 year on module, none on consumables)
Replacement Parts
Related Products
Educational use only: Vernier products are designed for educational use. They are not appropriate for industrial, medical, or commercial applications. Product usage disclaimer »