Electrochemistry Meters & Analysers
Nitrate Ion Standard Solution, 300 ppm Calibration Solution
- 300 ppm nitrate ion standard solution for routine calibration
- Suitable for compatible Twin and LAQUAtwin nitrate meters
- Fits B-341, B-342, B-741, B-742, NO3-11C, and NO3-11S
- Supplied in 14 mL bottles for practical small-volume use
- Pack includes 6 bottles, with instruction manuals and SDS noted
$110.00 (Ex GST)
Nitrate Ion Standard Solution, 5000 ppm Calibration Solution
- 5000 ppm nitrate ion standard solution
- Designed for LAQUAtwin nitrate meter calibration
- Suitable for Twin B-341, B-741, and NO3-11C
- Supplied in practical 14 mL bottles
- Pack includes 6 bottles with SDS noted
$110.00 (Ex GST)
ORP Sensor, Replacement Sensor for Pocket ORP Meter
- Replacement ORP sensor for LAQUAtwin ORP-11
- Supports reliable redox measurement performance
- Designed for easy sensor replacement
- Helps maintain accurate water quality testing
- Built for routine field and laboratory use
$143.00 (Ex GST)
ORP Standard Solution, 225 mV Calibration Solution for Pocket ORP Testers
- 225 mV ORP standard solution for LAQUAtwin ORP-11 calibration
- Designed for accurate redox, ORP, measurement setup
- Supplied in a convenient 6 × 14 mL pack size
- Only a few drops are needed for regular calibration
- Helps support reliable water quality measurement results
$110.00 (Ex GST)
pH Sensor, Replacement Flat Sensor for Pocket pH Meters
- Replacement pH sensor for B-713, pH 11, pH 22, and pH 33
- Flat sensor design is less than 1 mm thick
- Uses the same test principle as standard laboratory electrodes
- Waterproof construction helps protect the instrument
- Measures pH 0 to 14 with approx. 0.1 mL sample
$143.00 (Ex GST)
Pocket Calcium Ion Meter, 0.3 mL Sample Testing with 2-Point Calibration and Backlit LCD
- Measures calcium ions from 0.3 mL sample, or 0.05 mL with Sampling Sheet B
- Ion selective electrode supports direct small-volume calcium testing
- Measures 4 to 9900 ppm with temperature and mV display
- Two-point calibration with changeable high and low values
- IP67 dust and waterproof design with replaceable sensor
$880.00 (Ex GST)
Pocket Conductivity Meter, 0.12 mL Sample Testing with 2-Point Calibration and Backlit LCD
- Measures conductivity from just 0.12 mL sample
- Direct drop testing removes the need for a beaker
- Auto range with up to 2 calibration points
- IP67 water and dustproof with replaceable sensor
- Backlit LCD, 400-hour battery life, and carry case
$228.80 (Ex GST)
Pocket Conductivity Meter, 0.12 mL Sample Testing with Up to 3-Point Calibration and Backlit LCD
- Measures conductivity from just 0.12 mL sample
- Conductivity and temperature display support routine testing
- Up to 3 calibration points with auto standard recognition
- IP67 dust and waterproof design with replaceable sensor
- Backlit LCD and 400-hour battery life support portable use
$280.50 (Ex GST)
Pocket Fluoride Ion Meter, 0.3 mL Sample Testing with 2-Point Auto Calibration and Backlit LCD
- Measures fluoride ions from 0.3 mL sample, or 0.01 mL with Sampling Sheet B
- Ion selective electrode with LaF3 crystal sensor supports direct testing
- Measurement range of 0.1 to 990 ppm for broad fluoride analysis
- Two-point calibration with automatic standard recognition for easy setup
- IP67 water and dustproof design with replaceable sensor and backlit LCD
$880.00 (Ex GST)
Pocket Ionized Calcium Meter, Cow Side Blood Testing with 0.3 mL Sample Volume
- Designed for direct ionised calcium measurement in cow blood
- Supports earlier milk fever and SCH treatment decisions
- Minimum sample volume of 0.3 mL for practical testing
- Two-point calibration with automatic standard recognition
- IP67 dust and waterproof design with replaceable sensor
$2,183.50 (Ex GST)
Pocket Nitrate Ion Meter, 0.3 mL Sample Testing with Up to 2 Calibration Points
- Measures nitrate and nitrate-nitrogen from 0.3 mL sample
- Tests from 0.05 mL with Sampling Sheet B
- Flat sensor suits viscous liquids, solids, and powders
- Temperature and mV display with up to 2 calibration points
- IP67 protection, replaceable sensor, and backlit LCD
$1,314.50 (Ex GST)
Pocket Nitrate Ion Meter, 0.3 mL Sample Testing with Up to 2-Point Calibration and Backlit LCD
- Measures nitrate and nitrate-nitrogen from 0.3 mL sample
- Tests from 0.05 mL with Sampling Sheet B
- Flat sensor suits viscous liquids, solids, and powders
- Temperature and mV display with 2 calibration points
- IP67 protection, replaceable sensor, and backlit LCD
$1,199.00 (Ex GST)
Pocket Nitrate Ion Meter, Single-Drop On-Site Testing
- Measures nitrate and nitrate-nitrogen from 0.3 mL sample
- Direct testing from 0.05 mL with Sampling Sheet B
- Up to 2 calibration points with changeable values
- Auto hold, auto stable, and switchable backlight
- IP67 dust and waterproof design with replaceable senso
$764.50 (Ex GST)
Pocket ORP and Eh Meter, 0.3 mL Sample Testing with Backlit LCD
- Measures ORP and Eh in one compact pocket meter
- Tests from 0.3 mL sample, or 0.05 mL with Sampling Sheet B
- Platinum disk sensor supports direct small-volume measurement
- One-point calibration with automatic standard recognition
- IP67 protection, backlit LCD, and replaceable sensor design
$478.50 (Ex GST)
Pocket pH Meter, 0.1 mL Sample pH Testing with 2-Point Calibration and Backlit LCD
- Measures pH from 0.1 mL sample, or 0.05 mL with sampling sheet B
- Flat sensor suits viscous liquids, solids, and powder samples
- pH and mV display with up to 2 calibration points
- Auto calibration, buffer recognition, and temperature compensation
- IP67 protection, replaceable sensor, and carrying case included
$228.80 (Ex GST)
Pocket pH Meter, 0.1 mL Sample pH Testing with Up to 3-Point Calibration and Backlit LCD
- Measures pH from 0.1 mL sample, or 0.05 mL with sampling sheet B
- Flat sensor suits viscous liquids, solids, and powder samples
- pH and mV display with up to 3 calibration points
- Auto calibration, buffer recognition, and temperature compensation
- IP67 protection, replaceable sensor, and backlit LCD design
$280.50 (Ex GST)
Pocket pH Meter, 0.1 mL Sample pH Testing with Up to 5-Point Calibration and Backlit LCD
- Measures pH from 0.1 mL sample, or 0.05 mL with Sampling Sheet B
- Flat sensor suits viscous liquids, solids, and powder samples
- pH, mV, and temperature display with up to 5 calibration points
- Auto calibration, buffer recognition, and temperature compensation
- IP67 protection, replaceable sensor, and backlit LCD design
$330.00 (Ex GST)
Pocket Potassium Ion Meter, 0.3 mL Sample Testing with 2-Point Calibration and Backlit LCD
- Measures potassium ions from 0.3 mL sample, or 0.05 mL with Sampling Sheet B
- Ion selective electrode supports direct small-volume potassium testing
- Measures 4 to 9900 ppm with temperature and mV display
- Two-point calibration with changeable high and low values
- IP67 dust and waterproof design with replaceable sensor
$764.50 (Ex GST)
Pocket Salinity Meter, 0.12 mL Sample Testing with 2-Point Calibration and Backlit LCD
- Measures salinity from just 0.12 mL sample
- Displays salinity and temperature in one compact meter
- Converts conductivity into salt concentration without a beaker
- NaCl and seawater calibration curves support flexible testing
- IP67 water and dustproof design with replaceable sensor
$280.50 (Ex GST)
Pocket Salinity Meter, 0.3 mL Sample Testing with 2-Point Calibration and Backlit LCD
- Measures salinity from 0.3 mL sample, or 0.05 mL with Sampling Sheet B
- Converts sodium ion concentration into salinity or NaCl concentration
- Salinity, mV, and temperature display in one compact meter
- Up to 2 calibration points with auto calibration
- IP67 dust and waterproof design with replaceable sensor
$764.50 (Ex GST)
Pocket Sodium Ion Meter, 0.3 mL Sample Testing with 2-Point Calibration and Backlit LCD
- Measures sodium ions from 0.3 mL sample, or 0.05 mL with Sampling Sheet B
- Ion selective electrode supports direct sodium testing in small samples
- Measures 2 to 9900 ppm with temperature and mV display
- Two-point calibration with changeable high and low values
- IP67 dust and waterproof design with replaceable sensor
$764.50 (Ex GST)
Pocket Testers for Portable Water Quality Testing
- Replaceable combined probe design for practical routine testing
- Multi-colour backlit display for easier reading in different modes
- Data reading indicator with automatic data locking when stable
- Low voltage indication supports timely battery replacement
- Buffer solution standards selectable: CH, USA and NIST
- Auto shut-off with customised backlight display time
- Supplied for field use with standard solution, sample vials and lanyard
Pocket Testers with Bluetooth for Portable pH, ORP and Water Testing
- Bluetooth connection supports mobile app control and data storage
- Replaceable combined probe design suits different testing applications
- Multi-colour backlit display for clear reading in different modes
- Automatic stable reading lock helps improve result capture
- Four mobile app display modes include graph, table, dial, and general view
- Low voltage indication, auto shut-off, and customised backlight timing improve usability
- IP67 protection class with supplied standard solutions, sample vials, and lanyard for field work
Pocket Water Quality Meter, Single-Drop On-Site Testing
- Measures conductivity and TDS from just 0.12 mL sample
- Conductivity, TDS, and temperature display in one compact meter
- Up to 3 calibration points with auto standard recognition
- Four TDS curves support broader water testing applications
- IP67 water and dustproof design with replaceable sensor
$330.00 (Ex GST)
Portable Multi-Parameter Meters for pH, Conductivity and Dissolved Oxygen Testing
- Intelligent operating system upgrade for timed measurement, parameter setting, and data locking
- Multi-parameter capability for pH, conductivity, and dissolved oxygen applications
- 3.5 inch TFT colour display with new UI for easy reading and operation
- Auto timing datalogger, data holder, and storage up to 3000 groups
- Conductivity mode supports probe constant and standard solution calibration
- Rechargeable lithium battery with USB and Type-C charging support
- IP57 protection class for dependable portable laboratory and field testing
Portable Single Parameters for pH, ORP, Conductivity and DO Testing
- 3.5 inch TFT colour display for clear and easy reading
- New UI interface designed for simple and efficient operation
- Intelligent functions with auto timing datalogger, parameter setting, and data holder
- Data storage capacity up to 3000 groups for result recording
- Conductivity mode supports probe constant and standard solution calibration
- Rechargeable lithium battery with USB and Type-C charging support
- IP57 protection class for dependable portable laboratory and field use
Potassium Ion Sensor, Replacement Sensor with 4 to 9900 ppm Range
- Replacement potassium ion sensor for LAQUAtwin B-731 and K-11
- Direct measurement from 0.3 mL sample, or 0.05 mL with Sampling Sheet B
- Measures potassium ion concentration from 4 to 9900 ppm
- Sliding sensor guard cap helps scoop water samples
- Waterproof design with built-in temperature sensor
$227.70 (Ex GST)
Potassium Ion Standard Solution, 150 ppm Calibration for Pocket Potassium Meters
- 150 ppm potassium ion standard solution
- Designed for LAQUAtwin and Cardy potassium meter calibration
- Suitable for B-731, K-11, and Cardy C-131
- Supplied in practical 14 mL bottles
- Pack includes 6 bottles with SDS noted
$110.00 (Ex GST)
Potassium Ion Standard Solution, 2000 ppm Calibration for Pocket Potassium Meters
- 2000 ppm potassium ion standard solution
- Designed for LAQUAtwin and Cardy potassium meter calibration
- Suitable for B-731, K-11, and Cardy 131
- Supplied in practical 14 mL bottles
- Pack includes 6 bottles with SDS noted
$110.00 (Ex GST)
Salt EC Sensor, 0.12 mL Sample Testing with Ti/Pt Black Cell
- Replacement salt EC sensor for LAQUAtwin Salt-11
- Measures salt range from 0.0 to 100.0 g/L and 0.00 to 10.00%
- Requires only 0.12 mL sample for direct testing
- Corrosion-resistant Ti / Pt black cell material
- Waterproof design with built-in temperature sensor
$143.00 (Ex GST)
Salt Electrode, Replacement Sensor with 0.01 to 25% Salt Range
- Replacement salt sensor for LAQUAtwin B-721 and Salt-22
- Direct measurement from 0.3 mL sample, or 0.05 mL with Sampling Sheet B
- Salt range of 0.01 to 25% by weight
- Sliding sensor guard cap helps scoop water samples
- Waterproof design with built-in temperature sensor
$227.70 (Ex GST)
Sampling Sheet B, 100 pcs for 0.05 mL Minute Sample Testing
- For minute samples from 0.05 mL
- Suitable for particulate-containing samples such as soil extract
- Contains 100 pieces per box
- For LAQUAtwin and Twin pocket meters
- Not for conductivity and salt EC models
$220.00 (Ex GST)
Sampling Sheet Holder, Support for Particulate-Containing Samples
- Helps reduce particle influence during measurement
- Designed for samples such as soil extract
- Used together with Sampling Sheet B
- Suitable for LAQUAtwin pocket meters
- Not for conductivity and salt EC models
$110.00 (Ex GST)
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Electrochemistry Meters and Analysers are designed for accurate measurement of key water quality and electrochemical parameters including pH, conductivity, dissolved oxygen (DO), oxidation-reduction potential (ORP), and turbidity in laboratory, field, and educational environments. This category includes benchtop multi-parameter meters, portable testers, pocket meters, and advanced analytical instruments used in research, teaching, environmental monitoring, and quality control workflows.
These instruments support precise electrochemical analysis by using specialised electrodes and sensors to measure ionic activity, electrical conductivity, and chemical properties of liquids. Benchtop meters are suitable for controlled laboratory testing with higher stability and expanded functionality, while portable and pocket testers enable rapid, on-site measurements for water quality assessment and field applications. Multi-parameter systems allow simultaneous measurement of multiple variables, improving efficiency in routine testing and comparative analysis.
For quality and compliance reference, ISO 10523 is a recognised international standard for determination of pH in water, providing a relevant reference for pH measurement practices. ISO 7888 is also a current standard related to determination of electrical conductivity in water, supporting conductivity testing applications. ISO 5814 is applicable for dissolved oxygen determination using electrochemical probe methods, making it relevant for DO measurement instruments. These standards should be referenced only where supported by the instrument’s specifications, calibration procedures, and supplier documentation.
For LabChoice Australia customers, Electrochemistry Meters and Analysers provide reliable solutions for laboratory analysis, environmental testing, education, and industrial quality control. Their precision, versatility, and ease of use support consistent measurement and data accuracy across a wide range of electrochemical applications.