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Vernier Go Direct Ammonium Ion-Selective Electrode

Order code: GDX-NH4
Purchase QTY: (Each)1+    
Scientrific's price  $631.00    
Note: Prices do NOT include GST

Vernier's Go Direct Ammonium Ion-Selective Electrode (ISE) can be used to measure the concentration of ammonium (NH4+) in aqueous samples. It connects via Bluetooth® wireless technology or wired via USB to your device.

Use the Go Direct Ammonium Ion-Selective Electrode to wirelessly measure levels of ammonium ions introduced from fertilizers. It can also indicate aqueous ammonia levels, if sample solutions are acidified to convert NH3 to NH4+.

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 Vernier Go Direct Ammonium 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.

As this product has a finite shelf life we import it as required, allow 4 to 6 weeks for delivery from the date of your order.

COMPATIBILITY CHECK and Set Up Guide for your Vernier sensor, interface and software:
View >>>>

Rechargeable Battery — Ready When You Are
The Vernier Go Direct™ robust rechargeable battery offers long battery life and provides always-ready operation. Monitor battery life directly from Vernier's free Graphical Analysis™ 4 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
Vernier's Go Direct™ sensors connect directly to your mobile device, Chromebook or computer using Vernier's 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 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 junior school or primary students.

• Range (mV): ±1000mV
• Range (concentration): 1 to 18,000mg/L (or ppm)
• Accuracy: ±10% of full scale (calibrated 1 to 100mg/L)
• Interfering ions: K+, Li+, Na+, Cs+, Mg2+, Ca2+, Sr2+, Ba2+
• pH range: 2–7 (no pH compensation)
• Temperature range: 0–40°C (no temperature compensation)
• Electrode slope: 55 ±3mV/decade at 25°C
• Electrode resistance: 0.1 to 5MΩ
• Minimum sample size: must be submerged 28mm
• Connections:
     Wireless: Bluetooth
     Wired: USB

• Vernier Go Direct ISE Amplifier attached to a Go Direct Ammonium Ion-Selective Electrode BNC
• Vernier Micro USB cable
• 30mL bottle of High Standard solution with SDS (100mg/L NH4+ as N)
• 30mL bottle of Low Standard solution with SDS (1mg/L NH4+ as N)
• Short-Term ISE Soaking Bottle

Download the current Vernier K-12 Catalogue
Download the current Vernier University Catalogue

Educational use only:
Vernier and Kidwind products are designed for educational use. They are not appropriate for industrial, medical or commercial applications. Details

  • Warranty: 5 years (1 year on battery; no warranty for electrodes)

    Last edited 12th Jun 2020

    This product is used in teaching these Australian Curriculum codes:
    ACSCH030 - Chemical fundamentals - Properties and structure of materials - Ions are atoms or groups of atoms that are electrically charged due to an imbalance in the number of electrons and protons; ions are represented by formulae which include the number of constituent atoms and the charge of the ion (for example, O2–, SO42–)
    ACSCH032 - Chemical fundamentals - Properties and structure of materials - The characteristic properties of metals (for example, malleability, thermal conductivity, electrical conductivity) are explained by modelling metallic bonding as a regular arrangement of positive ions (cations) made stable by electrostatic forces of attra
    ACSCH031 - Chemical fundamentals - Properties and structure of materials - The properties of ionic compounds (for example, high melting point, brittleness, ability to conduct electricity when liquid or in solution) are explained by modelling ionic bonding as ions arranged in a crystalline lattice structure with forces of attract
    ACSSU176 - Biological Sciences - Ecology - Ecosystems consist of communities of interdependent organisms and abiotic components of the environment; matter and energy flow through these systems
    Click a curriculum code to see other products that relate.

    Accessories / Spare Parts:
    GDX-CLAMPVernier Go Direct Sensor Clampfrom $29.00 plus GST
    GDX-ISEAVernier Go Direct Ion-Selective Electrode Amplifierfrom $175.00 plus GST
    BTL-ESVernier Electrode Storage Bottlesfrom $36.00 plus GST
    GDX-NO3-BNCVernier Go Direct Nitrate Ion-Selective Electrode BNCfrom $524.00 plus GST
    GDX-NH4-BNCVernier Go Direct Ammonium Ion-Selective Electrode BNCfrom $524.00 plus GST
    GDX-K-BNCVernier Go Direct Potassium Ion-Selective Electrode BNCfrom $524.00 plus GST
    GDX-CA-BNCVernier Go Direct Calcium Ion-Selective Electrode BNCfrom $524.00 plus GST
    GDX-CL-BNCVernier Go Direct Chloride Ion-Selective Electrode BNCfrom $524.00 plus GST
    GDX-BAT-300Vernier Go Direct 300mAH Replacement Batteryfrom $27.00 plus GST
    NH4-MODVernier ISE Ammonium Replacement Modulefrom $200.00 plus GST
    NH4-LSTVernier ISE Ammonium Low Standardfrom $49.00 plus GST
    NH4-HSTVernier ISE Ammonium High Standardfrom $49.00 plus GST

    Similar Products:
    GDX-KVernier Go Direct Potassium Ion-Selective Electrodefrom $631.00 plus GST
    GDX-CAVernier Go Direct Calcium Ion-Selective Electrodefrom $631.00 plus GST
    GDX-CLVernier Go Direct Chloride Ion-Selective Electrodefrom $631.00 plus GST
    GDX-NO3Vernier Go Direct Nitrate Ion-Selective Electrodefrom $631.00 plus GST
    NH4-BTAVernier Ammonium Ion-Selective Electrodefrom $532.00 plus GST
    NH4-BNCVernier Ammonium Ion-Selective Electrode BNCfrom $503.00 plus GST

    User ManualVernier Go Direct Ammonium Ion-Selective Electrode

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