Home Products Applications Data Sheets Tutorials Site Map Contact Us Order and Enquiry
Products > Electrodes and Sensors
ElectroAnalytical Electrodes and Sensors
   
pH Electrodes Dissolved Oxygen (D.O.) Sensors
ORP / Redox Electrodes Conductivity Cells
Ion Selective Electrodes (ISE) Temperature Sensors
Reference Electrodes Electrodes for Special Applications (other cable lengths, contectors etc)
Place an Order or Enquiry
pH Electrodes Top
  • The EAI pH2011 is a pH Electrode suitable for General Purposes
  • Gel-filled robust Plastic Body with Protective Skirt
  • Single Junction Ag/AgCl Gel Reference with Fiber/Pellon liquid junction, provides a stable, low-leakage reference
  • Temperature Range 0 to 80°C
  • pH Range 0 to 14 (Linear Range 0.5 to 13.5)
  • Dimensions: 12 x 120 mm
  • BNC connector
  • 1 m Cable

Order Code Quantity Unit Price ex VAT (GBP)
PH-2011 1 to 4 50.00
PH-2011 5 + 25.00

Place an Order or Enquiry

  Top
ORP / Redox Electrodes
ORP Electrode suitable for Laboratory-, Field- and light Industrial Applications where the electrode is not submersed or under pressure

Order Code
Unit Price ex VAT (GBP)
ORP- 31C
55.00

 

ORP- 31C

Cost effective Combination Electrode for general Applications.

  • Platinum-Rod ORP Combination Electrode with Gel-filled Plastic Body and Protective Skirt
  • Single Junction Ag/AgCl Gel Reference with Fiber/Pellon liquid junction, provides a stable, low-leakage reference
  • Temperature Range 0°C to 80°C. Dimensions 12 x 120 mm.1 m Cable and BNC Connector
  • To prevent the electrode from drying-out it is stored in an O-Ring sealed bottle filled with Soaking solution. This is a safe and comfortable solution to store and remove the electrode

Order Code
Unit Price ex VAT (GBP)
ORP- 32C
70.00

 

ORP- 32C

Combination Electrode for more demanding Applications.

  • Platinum-Band (wrapped around a glass dome) ORP Combination Electrode with Gel-filled Plastic Body and Protective Skirt
  • Single Junction Ag/AgCl Gel Reference with Fiber/Pellon liquid junction
  • Temperature Range 0°C to 80°C. Dimensions 12 x 120 mm.1 m Cable and BNC Connector
  • To prevent the electrode from drying-out it is stored in an O-Ring sealed bottle filled with Soaking solution. This is a safe and comfortable solution to store and remove the electrode

ORP- 33C

Combination Electrode for high Precision Applications.

  • Platinum-Band (wrapped around a glass dome) ORP Combination Electrode with Re-fillable Glass Body
  • Single Junction Ag/AgCl Solution Reference with annular Ceramic liquid junction.
  • Temperature Range 0°C to 80°C. Dimensions 12 x 120 mm. 1 m Cable and BNC Connector.
  • To prevent the electrode from drying-out it is stored in an O-Ring sealed bottle filled with Soaking solution. This is a safe and comfortable solution to store and remove the electrode.
Order Code
Unit Price ex VAT (GBP)
ORP- 33C
90.00
 
Ion Selective Electrodes (ISE) Top

 

EAI Na071 is designed for the measurement of sodium ions in aqueous solutions. Ideal for measuring in samples contain significant amounts of interfering ion, e.g. 1<Na/K< 20, 1<Na/NH4<10

 

 

 
Please click on the Ion Links below for further information about the Ion Specific Elit ISEs
Ammonium
NH4+
Barium
Ba-
Bromide
Br-
Cadmium
Cd++
Calcium
Ca++
Chloride
Cl-
Copper
Cu++
Cyanide
CN-
Fluoride
F-
Iodide
I-
Lead
Pb++
Mercury
Hg++
Nitrate
NO3-
Nitrite
NO2-
Potassium
K+
Silver
Ag+
Sodium
Na+
Sulphide or
Sulfide
S--
Sulphate
SO4--(Indirect:
using Ba electrode)
Thiocyanate
SCN-

For more Information about the ELIT Ion-Selective Electrodes please click here.
For more Information about Ion-Selective Measurements please click here.

EAI Na071 - Combination Sodium (Na+) Electrode
  • Re-fillable Glass Body
  • NH4Cl filling solution
  • Dimensions 12 x 120 mm. 1 m Cable and BNC Connector
  • Temperature Range 20°C to 40°C.
  • pH range 10-14 pH
  • Store in pNa 4 (0.1 M NaCl) solution when is not in used
Order Code
Unit Price ex VAT (GBP)
Na071
150.00
 
ELIT ISE - Solid-State Ion-selective Electrodes
The ELIT solid-state 8 mm diameter Ion-selective Electrodes are high-quality ISEs which can be combined with a Reference electrode in an easy to handle "Electrode Combination" by means of an Electrode Head.
 
The advantages of this "Electrode Combination" against other Combination Electrodes are:
  • The Ion-Selective Electrode can be stored dry and the Reference Electrode can be stored wet, which increases the storage and working life considerably.
  • The Ion-Selective Electrode and the Reference Electrode can be replaced independently.
  • One Reference Electrode can be used with ISEs for various Ions.
Available for the Ions as shown in the Table on the Left.
Click on the requested Ion to open the Data Sheet.
Order Code
Unit Price ex VAT (GBP)
ELIT xxxx
140.00
for Nitrite (NO2-) electrode is GBP 150.00
(Replace xxxx with the Number in the (Elit Number) from the Datasheet of the requested Ion)
   
  Top
Reference Electrodes
Reference Electrodes are necessary to complete / close the electrical circuit / loop when Indicator Electrodes like pH-, ORP-and Ion-selective Electrodes have no built-in reference system.
 
Fig. 1 shows a Gel-filled Reference Electrode with Plastic Body (EAI-R02) and a Refillable Reference Electrode with Glass Body (EAI-R01).
 
The Electrode with Plastic body is more robust and suitable for field-measurements.
 
The Electrode with Glass body has a more stable signal output for high precision measurements and long-term measurements.
 
Fig. 2
Shows the "Liquid Junction" in form of a Ceramic "Frit" of the Glass Electrode.
 
Fig. 3
Shows the "Liquid Junction" in form of a Ceramic "Frit" of the Plastic Electrode.
 
Fig. 4
Shows a Reference Electrode for the ELIT Ion-selective Electrode combination.
 
The EAI Reference Electrodes have 1 m Cable with a 2 mm "Banana" Plug.
 
The ELIT Reference Electrodes have a gold-plated 4 mm "Banana" Plug.

Order Code Specification Unit Price ex VAT (GBP)
EAI-R01 Refillable, Glass, KCl Ref. 1m cable 50.00
EAI-R02 Gel-filled, Plastic KCl Ref. 1m cable 45.00
ELIT 001n Single Junction KCl Ref. 80.00
ELIT 003n Dual Junct. Li Acetate Ref. 95.00
Fig. 1
Fig. 2
Fig. 3
 
Fig. 4
  Place an Order or Enquiry
Dissolved Oxygen Sensors for General Purposes Top
Galvanic Dissolved Oxygen Sensor set
 
Polarographic Dissolved Oxygen Sensor set
  • Easy to Handle
  • Suitable for Lab- and light-use Field measurements
    (non-submersible)
  • Replacing the membrane is quick and easy. Simply unscrew the old assembly, fill with electrolyte (filling solution) and screw it on to the electrode.
  • Membrane: Teflon, replaceable screwing-on cap
  • Electrolyte: KCl (Concentrations are depened on DO types)
  • Built-in Temperature Sensor (NTC Thermistor)
  • Standard Cable Length: 3 m
  • Connector for all EAI instruments:4-pin Mini-DIN Connector (other type connectors are available on request)
  • Concentration Range: 0-20 mg/L (0% to 30% in air)
  • Temperture Range: 0 to 60 °C
  • Response Time: 98% in 90 seconds at 25°C
  • Accuracy: ± 0.2mg
  • Pressure: 0-50 PSI
  • Flow condition: 0.3 mL/s
  • Output Range: 4 µA, ± 1.5 µA in air saturated De-Ioned water and ± <= 0.15 µA in Zero Oxygen At 25 °C.
  • Min. Sample Size: 3 mL in a 50 mL beaker
  • Dimensions
    Electrode body: 12 mm diameter
    Electrode head: 16 mm diameter
    Total length: 150 mm

  • Supplied with:
    One set of Spare Membrane Cap
    20 mL NaCl Filling Solution
    Plastic Pipette
    Manual

We offer 2 types of Dissolved Oxygen Sensors:

Order Code Specification Unit Price ex VAT
(GBP)
DO-003 Galvanic Dissolved Oxygen Sensor
Polarisation: self-polarizing
160.00
DO-004 Polarographic Dissolved Oxygen
Polarisation: 15-30 minutes
165.00
DO-003-SpM Spare Membrane Cap for DO-003 25.00
DO-004-SpM Spare Membrane Cap for DO-004 25.00

Place an Order or Enquiry

 
Conductivity Cells for General Purposes Top
  • Suitable for Lab- and light-use Field measurements
    (non-submersible)
  • Standard Cable Length: 1 m
  • Connector for all EAI instruments: 6-pin DIN Connector (other type connectors are available on request)
  • Fig. 5 shows a Glass conductivity Cell with Cell Constant K = 10 and a Plastic Conductivity Cell with built-in Temperature Sensor.
  • Fig. 6 shows one Graphite Electrode and the Temperature Sensor of a Plastic Conductivity Cell.
  • Fig. 7 shows the "Platinum Black" electrodes of a Glass conductivity Cell with Cell Constant K = 10.
  • Fig. 8 shows the "Platinum Black" electrodes of a Glass conductivity Cell with Cell Constant K = 1
Fig. 5
We offer 4 types of Conductivity Cells:
Fig. 6
Fig. 7
Fig. 8
Order Code Specification Unit Price ex VAT
(GBP)
  
CND-11P Plastic Conductivity Cell, K=1 50.00
CND-11PT Plastic Conductivity Cell, K=1
with built-in PT1000 Temperature Sensor
55.00
CND-101P Plastic Conductivity Cell, K=10 50.00
CND-01G Glass Conductivity Cell, K=0.1 90.00
CND-11G Glass Conductivity Cell, K=1 50.00
CND-101G Glass Conductivity Cell, K=10 50.00

Place an Order or Enquiry

  Top
Temperature Sensors for General Purposes

 
  • Suitable for Lab- and light-use Field measurements
    (non-submersible)
  • Measuring Range: 0.0 to 100.0 °C
  • Standard Cable Length: 1 meter
  • Connector: 3.5 mm mono-audio plug
  • Dimensions
    Shaft length: 150 mm
    Sensor head length: 40mm diameter
    Sensor head diameter: 16 mm diameter
We offer Temperature Sensors with 4 types of Sensors:
Sensor Element Types
  • NTC Thermistor, Siemens/Matsushita B57863-S104-F9
  • Pt1000, 1000 Ohm Platinum RTD (PRT)
    NTC = Negative Temperature Coefficient
    RTD = Resistance Temperature Detector
    PRT = Platinum Resistance Thermometry

NTC temperature sensors can only be used with instruments which compensate the non-linearity of the
Siemens / Matsushita R-T curve-matched Thermistor B57863-S104-F9.
Pt 1000 temperature sensors can be used with all instruments suitable for Pt 1000.

Order Code Specification Unit Price ex VAT (GBP)
TS-NTC-L1
Stainless Steel 3mm shaft, NTC Thermistor Element.
Accuracy: 0.2C between 0.0C and 70.0C
50.00
TS-1000-L1
Stainless Steel 3mm shaft, Pt1000 Thermistor Element
Accuracy: 0.5C between 0.0C and 70.0C
50.00
TC-NTC-L1
ETFE-coated 3.5mm shaft, NTC Thermistor Element.
Accuracy: 0.2C between 0.0C and 70.0C
50.00
Electrodes for Special Applications
  • All our Electrodes and Sensors come with standard cable lengths and contectors as described
  • Other types of cable length or contector would be available for a small fee, please contact us for more details
  • If you need to transmit electrode signal for a longer distance (i.e. over 5 meter), or covert the electrode signal from mV to mA, you will need an Electrode Transmitter or a Sensor Amplifier, please contact us for more details
  • EAI Analysers and Monitors are compatible with most of the micro electeodes (i.e. half cell pH, D.O. etc), for a comprehensive solution for your application , please contact us
Place an Order or Enquiry
 
Copyright © 2004-2017 EA Instruments Ltd      Last updated: Jan.2017