Electrochemistry Meters

Electrochemistry Meters










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Fisherbrand™ accumet™ XL500 Benchtop Dual pH/ISE and Conductivity Meters
Provide advanced measurements with simple operation and offer a large, vivid color touch-screen display that allows for dynamic functionality. Fisherbrand accumet XL500 dual pH/ISE/conductivity benchtop meters offer advanced features with simple operation to help ensure your measurements are reliable and your laboratory processes are efficient.

Length (Metric) | 24.6 cm |
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Range (Resistivity) | 3 W to 100 MW over 4 ranges: 0 to 20 kW, 20 to 200 kW, 200 kW to 2 MW, 2 to 100 MW |
Detection Range | Multiple |
Length (English) | 9.68 in. |
Resolution (pH) | 0.1/0.01/0.001 |
Cell Constant | 0.01 to 10 |
Range (pH) | -2 to 20 |
Width (Metric) | 17.3 cm |
Resolution (ISE) | 2/3/4 Digits |
Accuracy (pH) | ±0.002 |
Range (ISE) | ±2000 mV |
Range (Salinity) | 0 to 80 ppt |
Accuracy | Multiple |
Data Management Details | 3 to 86400 sec. |
Display Type | LCD |
Accuracy (Salinity) | ± 1% full scale |
Resolution (Salinity) | 0.01/0.1ppm, 0.001/0.01/0.1ppt |
Voltage | 100/240 V |
Accuracy (Conductivity) | ±1% FS |
Resolution (mV) | 0.1mV |
Data Points | 2000 |
Certifications/Compliance | NIST, ISO, FDA, USDA, EPA |
Inputs | 2 BNC, 2 ATC |
Weight (Metric) | 1.13 kg |
Height (English) | 3.89 in. |
Calibration Points (Conductivity) | Automatic (4 points), maximum 1/range, manual (5 points), maximum 1/range |
Height (Metric) | 9.9 cm |
Accuracy (mV) | ±0.2 mV |
Accuracy (ISE) | 0.5% full scale (monovalent ion), 1% full scale (divalent ion) |
Warranty | 3 Years |
Temperature Accuracy | ±0.3°C |
Calibration Points (ISE) | 2 to 6 |
Resolution (Resistivity) | 0.01/0.1W, 0.001/0.1kW, 0.01MW |
Resolution (Conductivity) | 0.001/0.01/0.1mS |
Range (Conductivity) | 0 to 500 mS |
Accuracy (Resistivity) | ± 1% full scale |
Range (TDS) | 0.050 ppm to 500 ppt (at TDS factor 1.00) |
Resolution (TDS) | 0.01/0.1ppm, 0.001/0.01/0.1ppt |
Dimensions (L x W x H) | 24.6 x 17.3 x 9.9cm (9.7 x 6.8 x 3.9 in.) |
Accuracy (TDS) | ± 1% full scale |
Outputs | RS232, USB-A, Mini-B USB, RJ45, stirrer port (2) |
Frequency | 50/60Hz |
Calibration Points (pH) | Up to 6 preset or 5 custom |
Weight (English) | 2.5 lb. |
Range (mV) | ±2000 mV |
Temperature Resolution | 0.1°C |
Resolution | Multiple |
Fisherbrand™ accumet™ AB250 Benchtop pH/ISE Meters
Provides intuitive, simple operation and high accuracy measurements in a compact, affordable meter. Fisherbrand accumet AB250 pH/ISE meter provides flexible measurements of pH or ion concentration using an ion selective electrode (ISE) in one easy to use, reliable measurement system.

Accuracy (mV) | ±0.2 mV |
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Accuracy (ISE) | 0.5% full scale (monovalent ion), 1% full scale (divalent ion) |
Warranty | 3 Years |
Temperature Accuracy | ±0.3°C |
Calibration Points (ISE) | 2 to 6 points from one of following group, 0.001, 0.01, 0.1, 1, 10, 100, 0.01, 0.1, 1, 10, 100, 1000 |
Resolution (pH) | 0.1/0.01/0.001 |
Range (pH) | -2 to 20 |
Resolution (ISE) | 0.001/0.01/0.1/1 (automatic) |
Accuracy (pH) | ±0.002 |
Range (ISE) | 0.001 to 19999 (±2000) |
Data Management Details | Manual, timed (selectable every 3 to 3600 sec.), printer or CSV format |
Display Type | LCD |
Voltage | 100/240 V |
Resolution (mV) | 0.1mV |
Outputs | RS232 (phono plug), mini-B USB, stirrer |
Frequency | 50/60Hz |
Data Points | 500 |
Calibration Points (pH) | Up to 6 preset or 5 custom |
Range (mV) | ±2000 mV |
Inputs | BNC, ATC |
Temperature Resolution | 0.1°C |
Fisherbrand™ accumet™ AB200 Benchtop pH/Conductivity Meters
Provides intuitive, simple operation and high accuracy measurements in a compact, affordable meter. Fisherbrand accumet AB200 pH/conductivity meter combines the benefits of a pH meter and conductivity meter in one easy to use, reliable measurement system. The large backlit display offers great visibility in laboratory environments.

Range (Resistivity) | 2 W to 20 MW |
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Resolution (pH) | 0.1/0.01/0.001 |
Cell Constant | 0.010 to 10.000 |
Range (pH) | -2 to 20 |
Accuracy (pH) | ±0.002 |
Range (Salinity) | 0 to 80 ppt |
Data Management Details | Manual, timed (selectable every 3 to 3600 sec.), printer or CSV format |
Display Type | LCD |
Accuracy (Salinity) | ± 1% full scale |
Resolution (Salinity) | 0.01/0.1ppm, 0.001/0.01/0.1ppt |
Voltage | 100/240 V |
Accuracy (Conductivity) | ±1% FS |
Resolution (mV) | 0.1mV |
Data Points | 500 |
Inputs | BNC, ATC |
Calibration Points (Conductivity) | Automatic (4 points), maximum 1/range, manual (5 points), maximum 1/range |
Accuracy (mV) | ±0.2 mV |
Warranty | 3 Years |
Temperature Accuracy | ±0.3°C |
Resolution (Resistivity) | 0.01/0.1W, 0.001/0.1kW, 0.01MW |
Resolution (Conductivity) | 0.01/0.1μS, 0.001/0.01/0.1mS |
Range (Conductivity) | 0 μS to 500 mS |
Accuracy (Resistivity) | ± 1% full scale |
Range (TDS) | 0 ppm to 500 ppt (at TDS factor 1) |
Resolution (TDS) | 0/0.1ppm, 001/01/0.1ppt |
Accuracy (TDS) | ± 1% full scale |
Outputs | RS232 (phono plug), mini-B USB, stirrer |
Frequency | 50/60Hz |
Calibration Points (pH) | Up to 6 preset or 5 custom |
Range (mV) | ±2000 mV |
Temperature Resolution | 0.1°C |
Fisherbrand™ Traceable™ Conductivity/TDS Meter Pen
Easy-to-use, waterproof conductivity/TDS meter designed for routine analysis and quality control. Simply turn on, insert, and simultaneously read result and temperature.

Fisherbrand™ accumet™ XL250 Benchtop pH/ISE Dual Channel Meters
Provide advanced pH and ion measurements with simple operation and offer a large, vivid color touch-screen display. Fisherbrand accumet XL250 pH/ISE dual channel benchtop meters offer advanced features with simple operation to help ensure your measurements are reliable and your laboratory processes are efficient.
Length (Metric) | 24.6 cm |
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Detection Range | Multiple |
Length (English) | 9.68 in. |
Resolution (pH) | 0.1/0.01/0.001 |
Range (pH) | -2 to 20 |
Width (Metric) | 17.3 cm |
Resolution (ISE) | 2/3/4 Digits |
Accuracy (pH) | ±0.002 |
Range (ISE) | ±2000 mV |
Accuracy | Multiple |
Data Management Details | 3 to 86400 sec. |
Display Type | LCD |
Voltage | 100/240 V |
Resolution (mV) | 0.1mV |
Data Points | 2000 |
Certifications/Compliance | NIST, ISO, FDA, USDA, EPA |
Inputs | 2 BNC, 2 ATC |
Weight (Metric) | 1.13 kg |
Height (English) | 3.89 in. |
Height (Metric) | 9.9 cm |
Accuracy (mV) | ±0.2 mV |
Accuracy (ISE) | 0.5% full scale (monovalent ion), 1% full scale (divalent ion) |
Warranty | 3 Years |
Temperature Accuracy | ±0.3°C |
Calibration Points (ISE) | 2 to 6 |
Dimensions (L x W x H) | 24.6 x 17.3 x 9.9cm (9.7 x 6.8 x 3.9 in.) |
Outputs | RS232, USB-A, Mini-B USB, RJ45, stirrer port (2) |
Frequency | 50/60Hz |
Calibration Points (pH) | Up to 6 preset or 5 custom |
Weight (English) | 2.5 lb. |
Range (mV) | ±2000 mV |
Temperature Resolution | 0.1°C |
Resolution | Multiple |
Fisherbrand™ accumet™ XL200 Benchtop pH/Conductivity Meters
Provide advanced measurements with simple operation and offer a large, vivid color touch-screen display that allows for dynamic functionality. Fisherbrand accumet XL200 pH/Conductivity benchtop meters offer advanced features with simple operation to help ensure your measurements are reliable and your laboratory processes are efficient.

Length (Metric) | 24.6 cm |
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Range (Resistivity) | 3 W to 100 MW over 4 ranges: 0 to 20 kW, 20 to 200 kW, 200 kW to 2 MW, 2 to 100 MW |
Detection Range | Multiple |
Length (English) | 9.68 in. |
Resolution (pH) | 0.1/0.01/0.001 |
Cell Constant | 0.01 to 10 |
Range (pH) | -2 to 20 |
Width (Metric) | 17.3 cm |
Accuracy (pH) | ±0.002 |
Range (Salinity) | 0 to 80 ppt |
Accuracy | Multiple |
Data Management Details | 3 to 86400 sec. |
Display Type | LCD |
Accuracy (Salinity) | ± 1% full scale |
Resolution (Salinity) | 0.01/0.1ppm, 0.001/0.01/0.1ppt |
Voltage | 100/240 V |
Accuracy (Conductivity) | ±1% FS |
Resolution (mV) | 0.1mV |
Data Points | 2000 |
Certifications/Compliance | NIST, ISO, FDA, USDA, EPA |
Inputs | BNC, ATC |
Weight (Metric) | 1.13 kg |
Height (English) | 3.89 in. |
Calibration Points (Conductivity) | Automatic (4 points), maximum 1/range, manual (5 points), maximum 1/range |
Height (Metric) | 9.9 cm |
Accuracy (mV) | ±0.2 mV |
Warranty | 3 Years |
Temperature Accuracy | ±0.2°C |
Resolution (Resistivity) | 0.01/0.1W, 0.001/0.1kW, 0.01MW |
Resolution (Conductivity) | 0.001/0.01/0.1mS |
Range (Conductivity) | 0 to 500 mS |
Accuracy (Resistivity) | ± 1% full scale |
Range (TDS) | 0.050 ppm to 500 ppt (at TDS factor 1.00) |
Resolution (TDS) | 0.01/0.1ppm, 0.001/0.01/0.1ppt |
Dimensions (L x W x H) | 24.6 x 17.3 x 9.9cm (9.7 x 6.8 x 3.9 in.) |
Accuracy (TDS) | ± 1% full scale |
Outputs | RS232, USB-A, Mini-B USB, RJ45, stirrer port (2) |
Frequency | 50/60Hz |
Calibration Points (pH) | Up to 6 preset or 5 custom |
Weight (English) | 2.5 lb. |
Range (mV) | ±2000 mV |
Temperature Resolution | 0.1°C |
Resolution | Multiple |
Fisherbrand™ Traceable™ pH/ORP/Temperature Meter
Measure critical water quality parameters — without the need to carry multiple units.

Fisherbrand™ Traceable™ Salinity Meter Pen
Easy-to-use and splash-proof salinity meter designed for routine analysis and quality control. Simply turn on, insert, and simultaneously read result and temperature.

Fisherbrand™ accumet™ XL600 Benchtop Dual pH/ISE, Conductivity and Dissolved Oxygen Meters
Provide advanced measurements with simple operation and offer a large, vivid color touch-screen display. Fisherbrand accumet XL600 pH/ISE/conductivity/DO benchtop meters offer advanced features with simple operation to help ensure your measurements are reliable and your laboratory processes are efficient.
Range (Resistivity) | 3 W to 100 MW over 4 ranges: 0 to 20 kW, 20 to 200 kW, 200 kW to 2 MW, 2 to 100 MW |
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Resolution (pH) | 0.1/0.01/0.001 |
Width (Metric) | 17.3 cm |
Resolution (ISE) | 2/3/4 Digits |
Data Management Details | 3 to 86400 sec. |
Display Type | LCD |
Resolution (mV) | 0.1mV |
Data Points | 2000 |
Certifications/Compliance | NIST, ISO, FDA, USDA, EPA |
Height (English) | 3.89 in. |
Accuracy (mV) | ±0.2 mV |
Accuracy (ISE) | 0.5% full scale (monovalent ion), 1% full scale (divalent ion) |
Warranty | 3 Years |
Temperature Accuracy | ±0.2°C (±0.3°F) |
Calibration Points (ISE) | 2 to 6 |
Resolution (Conductivity) | 0.001/0.01/0.1mS |
Range (Conductivity) | 0 to 500 mS |
Dimensions (L x W x H) | 24.6 x 17.3 x 9.9cm (9.7 x 6.8 x 3.9 in.) |
Accuracy (TDS) | ± 1% full scale |
Outputs | RS232, USB-A, Mini-B USB, RJ45, stirrer port (2) |
Calibration Points (pH) | Up to 6 preset or 5 custom |
Range (mV) | ±2000 mV |
Resolution | Multiple |
Length (Metric) | 24.6 cm |
Detection Range | Multiple |
Length (English) | 9.68 in. |
Cell Constant | 0.01 to 10 |
Range (pH) | -2 to 20 |
Accuracy (pH) | ±0.002 |
Range (ISE) | ±2000 mV |
Range (Salinity) | 0 to 80 ppt |
Accuracy | Multiple |
Accuracy (Salinity) | ± 1% full scale |
Resolution (Salinity) | 0.01/0.1ppm, 0.001/0.01/0.1ppt |
Voltage | 100/240 V |
Accuracy (Conductivity) | ±1% FS |
Resolution (DO) | 0.01mg/L (0.1mbar), 0.1% saturation |
Inputs | 2 BNC, 2 ATC |
Weight (Metric) | 1.13 kg |
Calibration Points (Conductivity) | Automatic (4 points), maximum 1/range, manual (5 points), maximum 1/range |
Height (Metric) | 9.9 cm |
Accuracy (DO) | 0.1 +1 LSD |
Resolution (Resistivity) | 0.01/0.1W, 0.001/0.1kW, 0.01MW |
Accuracy (Resistivity) | ± 1% full scale |
Range (TDS) | 0.050 ppm to 500 ppt (at TDS factor 1.00) |
Resolution (TDS) | 0.01/0.1ppm, 0.001/0.01/0.1ppt |
Frequency | 50/60Hz |
Weight (English) | 2.5 lb. |
Range (DO) | 0 to 20mg/L (0 to 1272mbar), 0 to 200% saturation with 13-620-SSP electrode |
Temperature Resolution | 0.1°C |
METTLER TOLEDO™ S479 SevenExcellence™ pH/Conductivity/DO Benchtop Meter Kit
The S479 meter kit gives you everything you need to start measuring pH, conductivity, dissolved oxygen, BOD, resistivity, salinity, TDS, Redox/ORP, and ISFET all on one meter. It has an intuitive touchscreen, measurement shortcuts, and can export data to a printer, Excel file, or LIMS system.
METTLER TOLEDO™ SevenExcellence™ S500 pH/ISE Benchtop Meter
The S500 meter performs ion selective (ISE), pH, redox/ORP, and ISFET measurements. It can be expanded with additional modules to measure conductivity, resistivity, DO, salinity, TDS, and BOD. It has an intuitive touchscreen and the ability to create measurement shortcuts.
Range (Resistivity) | 0.001 μS/cm to 2000 mS/cm |
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Memory | 250 analyses (20.000 data points) |
Resolution (pH) | 0.001/0.01/0.1 |
Languages | Chinese, Chinese (TW), Croatian, Czech, Danish, Dutch, English (GB), English (US), French, German, Hungarian, Indonesian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese (BR), Russian, Slovak, Slovenian, Spanish, Swedish, Thai, Turkish, Vietnamese |
Range (pH) | -2 to 20 |
Range (Concentration) | 0.001 to 999999mg/L ppm, 0.0001 to 100mol/L %, 0.001 to 100000mmol/L |
Resolution (ISE) | 0.001 to 1 |
Channels | 1 |
Accuracy (pH) | ±0.002 |
Range (ISE) | 0 to 999999mg/L |
Range (Salinity) | 0.001 μS/cm to 2000 mS/cm |
Display Type | TFT |
Resolution (Salinity) | 0.001 to 1 |
Resolution (mV) | 0.1/1mV |
Data Points | 20,000 |
Calibration Points (Conductivity) | 13 Pre defined and 20 user defined standard |
Accuracy (mV) | ±0.1mV |
Temperature Accuracy | ±0.1°C |
Calibration Points (ISE) | Max. 5 points, 8 pre defined and 20 user defined buffer group |
Resolution (Resistivity) | 0.001 to 1 |
Resolution (Conductivity) | 0.001 to 1 |
Accuracy (Concentration) | ±0.5% |
Range (Conductivity) | 0.001 μS/cm to 2000 mS/cm |
Range (TDS) | 0.001 μS/cm to 2000 mS/cm |
Resolution (TDS) | 0.001 to 1 |
Outputs | RS232, USB-A, USB-B, LAN, Mini-LTW, Mini-DIN, BNC, Cinch/RCA |
Calibration Points (pH) | Max. 5 points, 8 pre defined and 20 user defined buffer group |
Temperature Range (Metric) | -30°C to +130°C |
Range (mV) | -2000 to 2000 mV |
Temperature Resolution | 0.1°C |
Thermo Scientific™ Orion™ Pro Star PD216 pH/ion and DO Bench Meter
Designed to provide accurate and reliable pH, ORP, ion concentration, dissolved oxygen, barometric pressure and temperature analysis, the Thermo Scientific™ Orion™ Pro Star PD216 bench meter is well suited for laboratories that desire a modern meter with advance performance.
Resolution (Polarographic DO) | 0.1, 1% saturation; 0.01, 0.1 mg/L or ppm |
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Pressure Range | 400.0 to 850.0 mmHg; 0.533 to 1.133 bar |
Memory | Non-volatile |
Advanced ISE Functions | Single known addition, single known subtraction, double known addition, double known subtraction, analyte addition and analyte subtraction |
Resolution (pH) | 0.1, 0.01 or 0.001 pH |
Languages | Chinese, English, French, German, Italian, Japanese, Korean, Portuguese, Spanish |
Measurement Modes | pH,ORP,mV,Ion Concentration (ISE),Dissolved Oxygen (mg/L),Dissolved Oxygen (% Saturation),Temperature,Barometric Pressure |
Resolution (ISE) | 0.0001 minimum, 1 to 5 digits |
Barometric Pressure Correction | Yes, automatic with built-in barometer or manual |
Display Type | 7-in. High-resolution Color Graphic LCD |
Resolution (mV) | 0.1 mV |
Resolution (Ion) | 0.0001 minimum, 1 to 5 digits |
Data Points | 10,000 with Date and Time Stamp |
Calibration Modes | Water-saturated air (100% and 0% saturation), air-saturated water (100% and 0% saturation) or custom concentration value (Winkler) |
Temperature Probe Calibration | 1 or 2 point temperature offset calibration |
Certifications/Compliance | CE, TUV 3-1, FCC Class A |
Probe Type | Polarographic or optical DO electrode |
Salinity Factor | 0.0 to 50.0 ppt |
Accuracy (mV) | ±0.2 mV or ±0.05% of the reading, whichever is greater |
Accuracy (ISE) | ±0.2 mV or ±0.05% of the reading, whichever is greater |
Warranty | 2 year meter warranty |
Temperature Accuracy | ±0.3°C, ±0.5°F |
Calibration Points (ISE) | Up to 5 |
Log Function Type | Automatic with Auto-Read and Timed Read Modes, Manual with Continuous Read Mode |
Percent Saturation Range Polarographic DO | 0.0 to 600.0% saturation |
Range (RDO) | 0.0 to 600.0% saturation; 0.01 to 90.0 mg/L or ppm |
Dimensions (L x W x H) | 218.9 x 153.2 x 91.33 mm; 8.62 x 6.03 x 3.60 in. |
Temperature Selection | Automatic with ATC temperature sensor, ambient or manual |
Percent Saturation Range (RDO) | 0.0 to 600.0% saturation |
Keypad | Capacitive touchscreen user interface |
Outputs | USB flash drive, computer or printer (STARA-106) |
Temperature Range (English) | -22.0°F to +266.0°F |
Range (Relative mV) | -2000 to 2000 mV |
Calibration Points (pH) | 1 to 5 points |
Backlight Option | Yes |
Percent Saturation Relative Accuracy (RDO) | ±2% saturation |
Range (Polarographic DO) | 0.0 to 600.0% saturation; 0.01 to 90.0 mg/L or ppm |
Range (mV) | -2000 to 2000 mV |
Accuracy (Barometer) | ±6.0 mmHg; ±0.008 bar |
Range (ORP) | -2000 to 2000 mV |
Methods | 10 per channel (20 total) |
Range (pH) | -2 to 20 |
Channels | 2 |
Accuracy (pH) | ±0.002 pH |
Range (ISE) | 0.0001 to 19999 |
Resolution (RDO) | 0.1, 1% saturation; 0.01, 0.1 mg/L or ppm |
Percent Saturation Resolution (RDO) | 0.1, 1% saturation |
Resolution (DO) | 0.1, 1% saturation; 0.01, 0.1 mg/L or ppm |
Percent Saturation Relative Accuracy (Polarographic DO) | ±2% saturation |
Inputs | Channel 1: BNC for pH, ORP or ISE, 8-pin MiniDIN for ATC, pin-tip for reference; Channel 2: 9-pin MiniDIN for dissolved oxygen with ATC |
Weight (Metric) | 1.00 kg |
Resolution (ORP) | 0.1 mV |
Accuracy (DO) | ±2% saturation; ±0.02 mg/L or ppm |
Isopotential Point | 7.000 pH; 1.000 ion concentration |
Accuracy (Polarographic DO) | ±2% saturation; ±0.02 mg/L or ppm |
AC Adapter | Universal 100-240 V 50/60 Hz power supply with wall plugs for US/Japan, Euro, UK/Singapore, Australia/New Zealand and China outlets |
Calibration | pH, ORP, Ion Concentration, DO, Barometric Pressure, Temperature |
Accuracy (ORP) | ±0.2 mV or ±0.05% of the reading, whichever is greater |
Calibration Points | 1 to 5 (pH), 1 (ORP), 1 to 5 (ion), 1 to 2 (DO), 1 (barometer), 1 to 2 (temperature) |
Alarm Output | Calibration reminder alarm, high and low limit alarm per parameter |
IP Rating | IP54 |
Percent Saturation Resolution (Polarographic DO) | 0.1, 1% saturation |
Weight (English) | 2.20 lbs. |
Range (Ion) | 0.0001 to 19999 |
Temperature Range (Metric) | -30.0°C to +130.0°C |
Range (DO) | 0.0 to 600.0% saturation; 0.01 to 90.0 mg/L or ppm |
Temperature Resolution | 0.1°C, 0.1°F |
Accuracy (RDO) | ±2% saturation; ±0.02 mg/L or ppm |
Thermo Scientific™ Orion Star™ A329 pH/ISE/Conductivity/Dissolved Oxygen Portable Multiparameter Meter
Accurately measure pH, ion concentration, conductivity, dissolved oxygen and temperature with our pH/ISE/conductivity/RDO/DO portable meter.
Salinity Measurement Modes | Practical salinity (psu) or natural sea water (ppt) |
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Resolution (Polarographic DO) | 0.01, 0.1mg/L |
Pressure Range | 400 to 850mmHg |
Range (Resistivity) | 2 ohm to 100.0 meg-ohm |
Memory | Non-volatile memory preserves data log, calibration log and meter settings |
Advanced ISE Functions | Segmented (point-to-point) slope, non-linear selectable auto-blank, low concentration range stabilit |
Resolution (pH) | 0.1/0.01/0.001 |
Languages | English, Spanish, French, Italian, German and Chinese; Portuguese and Korean available with software update |
Measurement Modes | pH,mV,Relative mV,TDS,ORP with Temperature,Salinity,Conductivity,Resistivity with Temperature |
Resolution (ISE) | 0.0001 minimum, 1 to 3 significant digits (user selectable) |
Power Supply | 4 AA batteries (included) or universal AC adapter (sold separately) |
Barometric Pressure Correction | 400 to 850mmHg, automatic using built-in barometer or manual entry |
Data Management Details | Transfer single, range or all data points to printer or computer |
Battery Life | 800 hr. |
Display Type | LCD Graphic, Backlit |
Resolution (mV) | 0.1mV |
Data Points | 5000 with Date and Time Stamp |
Calibration Modes | Water-saturated air, air-saturated water, manual (Winkler titration), zero point |
Temperature Probe Calibration | 1 point temperature offset calibration |
Certifications/Compliance | CE, TUV 3-1, FCC Class A |
Salinity Factor | 0.0 to 45.0 ppt, automatic correction using conductivity reading or manual entry of sample salinity |
Accuracy (mV) | ±0.2 mV or ±0.05% of reading whichever is greater |
Accuracy (ISE) | ±0.2 mV or ±0.05% of reading whichever is greater |
Warranty | 3 Year Meter |
Temperature Accuracy | ±0.1°C |
Stability | Selectable fast, medium, slow or Smart Stability setting; Selectable off or Automatic Smart averaging setting |
Calibration Points (ISE) | 1 to 5 |
Resolution (Conductivity) | 0.001 μS minimum, auto ranging up to 4 significant digits |
Range (Conductivity) | 0.001 μS/cm to 3000 mS/cm |
Log Function Type | Automatic data logging with Auto-Read and Timed measure modes; manual data logging with Continuous m |
Percent Saturation Range Polarographic DO | 0.0 to 600.0 % saturation |
Battery Type | 4 AA (included) |
Relative Humidity Range | 5 to 85 %, non-condensing |
Range (RDO) | 0.00 to 50.00mg/L |
Dimensions (L x W x H) | 24cm x 10cm x 6.5cm (9.5 in. x 3.9 in. x 2.6 in.) |
Accuracy (TDS) | 0.5% of reading ±1 digit |
Temperature Selection | Manual or automatic with ATC temperature probe |
Percent Saturation Range (RDO) | 0.0 to 500.0 % saturation |
Keypad | Comprehensive with menu-specific function keys and dual purpose scroll/shortcut keys |
Outputs | USB, RS232 |
Temperature Range (English) | 22.0°F to 221.0° F |
Range (Relative mV) | ±2000.0 mV |
Calibration Points (pH) | 1 to 5 |
Backlight Option | Yes (Selectable) |
Percent Saturation Relative Accuracy (RDO) | ±2 % saturation ≤ 200 % saturation, ±10 % saturation > 200 % saturation |
Range (Polarographic DO) | 0.00 to 90.00mg/L |
Range (mV) | ±2000.0 mV |
Accuracy (Barometer) | ±6mmHg |
Range (ORP) | ±2000.0 mV |
Methods | 10 per channel with password protection |
Pressure Resolution | 1mmHg |
Cell Constant | 0.001 to 199.9cm-1 |
Temperature (Metric) Reference | 5, 10, 15, 20, 25°C |
Range (pH) | -2 to 20 |
TDS Factor Range | Linear (0.02 to 9.99) |
Channels | 3 |
Accuracy (pH) | ±0.002 |
Range (ISE) | 0.0001 to 19900 with selectable units of ppm, Molar, mg/L, %, ppb or none |
Range (Salinity) | 0.06 to 80.00 psu, 0.05 to 42.00 ppt |
Resolution (RDO) | 0.01, 0.1mg/L |
Temperature Compensation | Linear, nLFn (non-linear ultra pure water), nLFu (non-linear ultra pure degassed water), EP (off with warning) or off |
Accuracy (Salinity) | 0.5% of reading ±1 digit |
Resolution (Salinity) | 0.01 psu or 0.01 ppt minimum, auto ranging |
Percent Saturation Resolution (RDO) | 0.1, 1 % saturation |
Accuracy (Conductivity) | 0.5% of reading ±1 digit > 3 μS; 0.5% of reading ±0.01 μS ≤ 3 μS |
Percent Saturation Relative Accuracy (Polarographic DO) | ±2 % saturation or ±2% of reading whichever is greater |
Inputs | BNC (pH or ORP electrode), pin-tip (reference electrode), 8 pin MiniDIN (conductivity sensor with built-in temperature or ATC temperature probe), 9 pin MiniDIN (RDO optical or polarographic DO sensor with built-in temperature) |
Weight (Metric) | 0.5 kg |
Calibration Points (Conductivity) | Up to 5 |
Temperature (English) Operating | 41°F to 113°F (ambient) |
Resolution (Resistivity) | 1 ohm or 0.1 meg-ohm, auto ranging |
Isopotential Point | 7.000pH |
Accuracy (Polarographic DO) | ±0.2mg/L or ±2% of reading, whichever is greater |
Accuracy (Resistivity) | 0.5% of reading ±1 digit |
AC Adapter | Universal 50-60 Hz, 100-240 VAC power adapter (sold separately, Cat. No. 1010003) |
Range (TDS) | 0.001 ppm to 200.0 ppt |
Resolution (TDS) | 0.001 ppm minimum, auto ranging up to 4 significant digits |
Calibration | pH with calibration editing option, ion concentration (ISE) with calibration editing option, relativ |
Calibration Points | 1 point relative mV (RmV) mode, 1 point ORP mode |
Alarm Output | High/low limit alarm, calibration due alarm |
IP Rating | IP67 |
Percent Saturation Resolution (Polarographic DO) | 0.1, 1 % saturation |
Model | Orion Star A329 pH/ISE/mV/RmV/ORP/Conductivity/TDS/Salinity/Resistivity/RDO Optical/Dissolved Oxygen/Temperature Portable Meter |
Weight (English) | 1.2 lb. |
Temperature (Metric) Operating | 5°C to 45°C (ambient) |
Temperature Range (Metric) | -5.0°C to +105.0°C |
Percent Saturation Range (Polarographic DO) | 0.0 to 600.0 % saturation |
Temperature Resolution | 0.1°C, 0.1°F |
Accuracy (RDO) | ±0.1mg/L up to 8mg/L, ±0.2mg/L from 8 to 20mg/L, ±10% of reading up to 50mg/L |
METTLER TOLEDO™ S900 SevenExcellence™ Dissolved Oxygen/BOD Benchtop Meter
The S900 is a dissolved oxygen(DO)/biological oxygen demand (BOD) meter. It can be expanded with additional modules to measure pH, conductivity, ISE, salinity, TDS, and Redox/ORP. It has an intuitive touchscreen, measurement shortcuts, and can export data to a printer, Excel file, or LIMS system.
Accuracy | ±1 |
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Display Type | Color TFT |
Accuracy (Concentration) | ±0.1mg/L from 0 to 8; ±0.2mg/L from 8 to 20; ±10% from 20 to 50 |
Percent Saturation Range Polarographic DO | 0 to 500% |
Measurement Modes | Dissolved Oxygen |
Temperature Range (Metric) | 0°C to 50°C |
Range (DO) | 0.000 to 50mg/L (ppm) |
Channels | 3 |
Resolution | 0.001 (display) |
Fisherbrand™ accumet™ AP125 Portable pH/Ion/mV/Temperature Meter
Accurate measurements any time, anywhere
Accuracy (mV) | 0 to ±2000mV |
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Warranty | 3 Years |
Resolution (pH) | Adjustable |
Measurement Modes | pH,Ion,mV,Temperature |
Range (pH) | 2 to 20 |
Range | -2 to +20pH |
For Use With (Application) | pH, Ion concentration, mV, Temperature |
Includes | Meter, 9V battery, manual |
Calibration Points | 10 |
Accuracy | Multiple |
Display Type | LCD |
Product Type | Meter Only |
IP Rating | IP67 |
Temperature Range (English) | 23°F to 212°F |
Data Points | 200 |
Temperature Range (Metric) | -5°C to +100°C |
Range (mV) | 0 to ±2000 mV |
Resolution | Multiple |