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pH Meters / Conductivity Meters / Standard Solutions

The pH meter, conductivity meter, and standard solution are instruments for measuring the pH concentration and conductivity of liquids, and the standard solution is used to calibrate the instrument before measuring each. Since many pH meters and dielectric constant meters are used around water and outdoors, there are many types that have a waterproof structure. There are many types such as handy type that considers carrying, sensors that can be replaced, and samples that can measure solids and powders. Some devices can measure pH, conductivity, TDS, temperature, etc. with a single unit.

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  1. Waterproof Conductivity Meter
    AS ONE Waterproof Conductivity Meter
    With a thin tip, it can also be used for test tubes. It is a small size that is convenient to carry and can measure various items, so it can be used for many purposes. Comes with an auto-off function to prevent forgetting to turn it off.
    As ONE Part Number  2-902-01 
    from S$199.90
    Min. 2 days
  2. Desktop pH meter
    METTLER TOLEDO Desktop pH meter
    A compact and simple desktop pH meter.
    Power Supply  100～240V・50/60Hz、12VDC  Data recorded numbers  200, calibration results  Dimension (mm)  227×147×70  Mass (g)  630  Included Accessories  Electrode LE438  Reproducibility  pH/±0.01pH、ORP/±1mV 
    from S$1,499.00
    Min. 2 days
  3. pH Tester (Checker Plus)
    Hanna Instruments pH Tester (Checker Plus)
    The small diameter electrode is ideal for measurement in narrow-mouthed containers such as test tubes and flasks. Electrode replacement is very easy. Easy operation with one button. Measurement stability mark that informs the timing of reading. The calibrated standard solution is displayed on the... Read More
    Unit of Detection  0.01pH  Dimensions (Length L x Width W x Thickness) (mm)  174×50×21  Mass (g)  50  RoHS directive (corresponding to 10 substances)  Correspondence  Measuring Range  pH：0.00～14.00 
    from S$149.90
    Min. 2 days
  4. Replacement conductivity sensor
    CUSTOM Replacement conductivity sensor
    TGK Part No.  219-80-76-14  Suitable for  CD-6021 / 6021A  RoHS directive (corresponding to 10 substances)  Correspondence 
    from S$77.99
    Min. 5 days
  5. ISE half-cell electrode (bromide)
    Hanna Instruments ISE half-cell electrode (bromide)
    Bromide (Br -) for ISE electrode Free bromide ions in emulsified foods, drinking water, plants, soil, and for titration
    Temperature Measurement Range (℃)  0～80  Cable Length (m)  1  Electrode Diameter (Φmm)  12  Electrode Length H (mm)  120  Measuring Range (pH)  2～12.5  Substance to be Measured  Bromide  RoHS directive (corresponding to 10 substances)  Correspondence  Material (Body)  Epoxy resin  Electrode  Half-cell, solid  Measuring Range  M：1～1×10-69、mg/L：0.08～79910 
    from S$1,999.00
    Min. 16 days
  6. Total acidity measuring instrument for wine Mini Titrator
    Hanna Instruments Total acidity measuring instrument for wine Mini Titrator
    Excellent cost performance specializing in measuring the total acidity of wine Space-saving design with a width similar to that of a general tissue box Measured values are displayed in units of g / L as tartaric acid All standard solutions and reagents required for measurement are included as sta... Read More
    Mass (kg)  1.9  Power Supply  12VDC adapter  Dimensions, Width W x Depth D x Height H (mm)  235×200×150  RoHS directive (corresponding to 10 substances)  Correspondence  Temperature Compensation  [PH] Manual or automatic 
    from S$3,599.00
    Min. 4 days
  7. Standard sensor for waterproof ORP meter
    CUSTOM Standard sensor for waterproof ORP meter
    Mass (g)  40 
    from S$199.90
    Min. 6 days
  8. Electrode for Compact pH Meter (LAQUAtwin)
    HORIBA Electrode for Compact pH Meter (LAQUAtwin)
    A waterproof type that integrates a glass electrode and a comparison electrode on a 1 mm thin substrate. # 0113 Successor model.
    Required sample volume (mL)  0.1 (minimum)  Measuring Range (pH)  2～12  TGK Part No.  831-66-01-01 
    Rating:
    80%
    (7)
    from S$149.90
    Min. 2 days
  9. Electrode for Handy pH Meter
    HORIBA Electrode for Handy pH Meter
    Measuring Range (pH)  0～14  Liquid Contact Point  Ceramic 
    Rating:
    100%
    (1)
    from S$359.90
    Min. 2 days
  10. Handy type pH meter SK-620PHⅡ
    SATO KEIRYOKI MFG Handy type pH meter SK-620PHⅡ
    Sensors can be selected according to the application and purpose. With a 3-point calibration function that enables highly accurate pH measurement. pH4.01 (phthalate), pH6.86 (neutral phosphate), pH10.01 (carbonate) * With an auto power off function that automatically turns off the power after 20 ... Read More
    Resolution  (pH) 0.01pH, (Temperature) 0.1 ° C  Mass (g)  Approx. 220 (including batteries) 
    Rating:
    63%
    (7)
    from S$249.90
    Min. 2 days
  11. Pocket Type pH Meter
    SATO KEIRYOKI MFG Pocket Type pH Meter
    Equipped with calibration function, fixed display HOLD, and auto power off function. Compliant with waterproof standard JIS C0920 IPX4. It can be operated even with wet hands. SK-631 and SK-632 can measure pH and temperature. Comes with automatic temperature guarantee. The electrode is a glass el... Read More
    Measuring Range (pH)  2.0～12.0  Main Unit Dimensions, Width W x Depth D x Height H (mm)  36×25×150  Power Supply  4 alkaline batteries LR44  Mass (g)  Approximately 65 (including batteries)  Material  Indicator/ABS resin sensor/Glass 
    Rating:
    76%
    (5)
    from S$97.99
    Min. 2 days
  12. SK-620PH Replacement Sensor
    SATO KEIRYOKI MFG SK-620PH Replacement Sensor
    3 in 1 sensor. Internal liquid KCL cannot be refilled. This is a sensor for the handheld pH meter SK-620PHⅡ and desktop pH meter SK-650PH. * Depending on the measurement sample, such as organic solvent, oil, adhesive, strong acid (pH 0-2), strong alkali (pH 12-14), surfactant, etc., the sensor pr... Read More
    As ONE Part Number  2-5973-11  Suitable for  Handheld pH meter SK-620PH 
    from S$179.90
    Min. 2 days
  13. Replacement pH sensor
    CUSTOM Replacement pH sensor
    Rating:
    50%
    (2)
    from S$87.99
    Min. 2 days
  14. pH Composite Electrode (Waterproof)
    DKK-TOA pH Composite Electrode (Waterproof)
    Suitable Model  HM-30P  Type  Models approved by the Measurement Law  Measuring Range  pH0～14、0～100℃  Accuracy (pH)  ± 0.02 (error if ± 0.6 deviation) 
    from S$379.90
    Min. 2 days
  15. pH Electrode
    DKK-TOA pH Electrode
    A pH electrode with a thick glass film that makes it difficult to break.
    Measuring Range (pH)  0～14 
    Rating:
    60%
    (1)
    from S$329.90
    Min. 2 days
  16. LAQUA electrode
    HORIBA LAQUA electrode
    Operating Temperature Range (℃)  0～60  Range  pH/0～14 
    Rating:
    100%
    (1)
    from S$539.90
    Min. 2 days
  17. TDS Meter
    AS ONE TDS Meter
    Dimension (mm)  150×28×13  As ONE Part Number  3-6452-01  Mass (g)  42.5  Resolution  TDS/1ppm(mg/L), temperature/0.1℃  Measuring Range  TDS/Temperature: 0~5000ppm(mg/L)/0~80℃  Measuring Item  TDS/temperature  Accuracy  ±2% 
    from S$97.99
    Min. 2 days
  18. Digital pH meter
    Shinwa Rules Digital pH meter
    Compact and convenient to carry. Comes with a hold function. Since it has a protection class of IPX5 *, it can be used with confidence even if it gets wet.
    Minimum Reading  (Resolution) pH 0.1  Measuring Range (pH)  1.0～14.0  Applicable Temperature Range  5～35℃  Power Supply  Silver oxide battery LR44 3 pieces  Accuracy  ±pH0.1 
    Rating:
    20%
    (1)
    from S$159.90
    Min. 2 days
  19. pH Tester Checker
    Hanna Instruments pH Tester Checker
    A pH tester for small-diameter electrodes that fit in test tubes and flasks. The entry model "Checker" series of pH testers has been renewed! It is simple and easy to use, and is recommended for educational institutions such as schools and beginners. HI 98100 has a detection unit of 0.0... Read More
    Unit of Detection  0.01pH  Measuring Range (pH)  0～14  Dimensions (Length L x Width W x Thickness) (mm)  174×50×21  Mass (g)  50  Continuous Operating Time (hours)  About 1000  Power Supply  CR2032 button battery x 1  RoHS directive (corresponding to 10 substances)  Correspondence  Accuracy (pH)  ±0.2 
    Rating:
    64%
    (5)
    from S$99.90
    Min. 2 days
  20. Replacement pH Sensor Only
    AS ONE Replacement pH Sensor Only
    As ONE Part Number  1-062-11  Type  Replacement pH sensor only 
    Rating:
    100%
    (1)
    from S$89.99
    Min. 2 days
  21. LAQUAtwin Nitrate Ion Sensor
    HORIBA LAQUAtwin Nitrate Ion Sensor
    LAQUAtwin's unique planar nitrate ion electrode with excellent selectivity that is not affected by pH or other ions # 0243 successor model
    Sample Volume (mL)  0.3mL or more  Measuring Item  Nitrate ion (for general use)  Operating Temperature Range (℃)  5～40  Suitable Model  B-74X、B-34X/LAQUAtwin-No3-11/C/S 
    Rating:
    100%
    (1)
    from S$199.90
    Min. 2 days
  22. Option for Personal pH Meter
    Yokogawa Electric Option for Personal pH Meter
    Rating:
    100%
    (1)
    from S$389.90
    Min. 2 days
  23. pH Composite Electrode Cal Memo (Waterproof)
    DKK-TOA pH Composite Electrode Cal Memo (Waterproof)
    Measuring Range  0～±2000mV、0～100℃  Suitable Model  HM-31P/WM-32EP/IM-32P/DM-32P  Type  Models approved by the Measurement Law 
    Rating:
    100%
    (1)
    from S$359.90
    Min. 2 days
  24. Conductivity Meter
    AS ONE Conductivity Meter
    Measuring Range (℃)  0～80  As ONE Part Number  3-6453-01  Mass (g)  42.5  Resolution  Conductivity/1μS/cm, Temperature/0.1℃  Measuring Item  Conductivity/temperature  Measuring Range  Conductivity: 0-9990 μS/cm  Material  Exterior/ABS, sensor/SUS304  Accuracy  ±2% 
    Rating:
    60%
    (1)
    from S$119.90
    Min. 2 days
  25. Non-refillable pH electrode
    HORIBA Non-refillable pH electrode
    Since it is a gel type internal liquid, it does not need to be replenished and maintenance is easy. Ideal for field measurement with a plastic body.
    Measuring Range (pH)  0～14  Operating Temperature Range (℃)  0～80  Suitable Model  F-71T、F-72T、F-73T、F-74T、D-210，D-220 
    from S$299.90
    Min. 2 days
  26. Replacement standard electrode (PH only)
    Hanna Instruments Replacement standard electrode (PH only)
    A pH electrode that can be used for Pep 4/5 and Combo 1/2/3. Cartridge type for easy replacement.
    TGK Part No.  766-66-01-79  RoHS directive (corresponding to 10 substances)  Correspondence 
    Rating:
    80%
    (2)
    from S$169.90
    Min. 2 days
  27. Electrode tip for DO electrode
    HORIBA Electrode tip for DO electrode
    Replacement electrode tip.
    from S$259.90
    Min. 2 days
  28. Digital pH Meter
    Mother Tool Digital pH Meter
    A PH meter ideal for water quality management in pools, aquariums, food, water treatment, etc. * Products with proofreading cannot be canceled after ordering. * For products with calibration documents and traceability system diagrams, we can only accept orders online. * Documents applicable only ... Read More
    Measuring Range  0-14PH (resolution 0.01PH)  Power Supply  006P(9V)×1  Operating Temperature / Humidity Range  0～50℃、0～90%RH  Dimensions, Width W x Height H x Depth D (mm)  70×131×25  Sampling  About 0.4 seconds  Mass (g)  About 153  Cable Length (m)  About 2  Measurement Principle  Glass electrode type  Probe length (mm)  Φ10×128 
    Rating:
    60%
    (1)
    from S$249.90
    Min. 2 days
  29. LAQUAtwin calcium ion sensor
    HORIBA LAQUAtwin calcium ion sensor
    LAQUAtwin's unique planar calcium ion electrode with excellent selectivity that is not affected by pH or other ions
    Sample Volume (mL)  0.3mL or more  Measuring Range  4～9900 ppm(mg/L)  Operating Temperature Range (℃)  5～40  Suitable Model  B-751/LAQUAtwin-Ca-11  Measuring Item  Calcium ion 
    from S$199.90
    Min. 2 days
  30. Digital ORP Meter
    Mother Tool Digital ORP Meter
    Ideal for measuring oxidized and reduced water. We support a wide range of applications such as work sites, research, and school teaching materials. Easy operation with an easy-to-read screen! High-precision, compact and lightweight design redox potential meter with electrodes. Large and easy-to-... Read More
    Measurement Range (mV)  -1999～1999  Power Supply  006P (9V) dry cell  As ONE Part Number  1-6526-01  Input Impedance  100MΩ  Resolution  1mV  Dimensions, Width W x Height H x Depth D (mm)  68×205×30  Sampling  About 0.4 seconds / time  Mass (g)  About 200  Sensor  ORP electrode Siver  Specification  Temperature compensation automatic  Accuracy  ±(0.8%+1dgt) (23±5℃) 
    Rating:
    40%
    (1)
    from S$299.90
    Min. 2 days
  31. Twin COND meter
    HORIBA Twin COND meter
    from S$169.90
    Min. 2 days
  32. Personal pH Meter
    Yokogawa Electric Personal pH Meter
    The main body has a highly durable and waterproof structure (IP67). It is equipped with 300 points of data memory, clock, and time alarm function.
    Sensor Cable Length (m)  0.75  Mass (g)  About 250 or less (excluding electrodes)  Temperature Compensation  Automatic 
    from S$1,299.00
    Min. 2 days
  33. Pure water management PWT
    Hanna Instruments Pure water management PWT
    A tester suitable for low concentration measurement from 0.0 to 99.9 μS / cm. One point of manual calibration is pocket-sized, so it is easy to carry. It is the best one for all fields where distilled water, desalinated water, and pure water are used, such as cleaning printed circuit boards, clea... Read More
    Operating Temperature Range (℃)  0～50  Measuring Range (μS/cm)  0～99.9  As ONE Part Number  1-5019-01  Temperature Compensation (℃)  10-40 (automatic)  Dimensions, Thickness x Width W x Length L (mm)  23×41×175  Battery  4 LR-44 button batteries  Mass (g)  About 95  RoHS directive (corresponding to 10 substances)  Correspondence  Calibration  Manual one-point calibration  Accuracy (%)  ± 2 full scale 
    from S$249.90
    Min. 2 days
  34. Field type portable water quality meter D-200 series
    HORIBA Field type portable water quality meter D-200 series
    All-in-one case. Easy to go straight to the site with a carrying case! A sturdy body that is ideal for the site. Waterproof and dustproof structure! Scratch resistant screen. Equipped with a backlight function as standard! Strong against impact and easy to hold. Intuitive operation. Easy-to-under... Read More
    Dust / Water Protection  IP67 equivalent  Display  Monochrome custom LCD with backlight 
    from S$1,299.00
    Min. 2 days
  35. Immersion pH Electrode No Temperature Compensation
    CEM Corpration Immersion pH Electrode No Temperature Compensation
    Uses lead-free glass that complies with RoHS regulations. Since it is a composite electrode, maintenance is easy. The lead wire of the immersion type electrode can be selected from three different lengths. A lineup of non-replenishment types that are easy to replace.
    RoHS directive (corresponding to 10 substances)  Correspondence  Specification  No temperature compensation 
    from S$379.90
    Min. 2 days
  36. LAQUAtwin Potassium Ion Sensor
    HORIBA LAQUAtwin Potassium Ion Sensor
    LAQUAtwin's unique planar potassium ion electrode with excellent selectivity that is not affected by pH or other ions
    Sample Volume (mL)  0.3mL or more  Operating Temperature Range (℃)  5～40  Suitable Model  B-731/LAQUAtwin-K-11  Measuring Item  Potassium ion 
    Rating:
    100%
    (1)
    from S$199.90
    Min. 2 days
  37. Digital pH Meter (SD Card Data Logger)
    Mother Tool Digital pH Meter (SD Card Data Logger)
    Temperature / ORP measurement (sensor sold separately) is possible. Various measurement modes. (Data hold Max / Min display) With a backlight, it is convenient for measurement in dark places.
    Unit of Detection  (pH)0.01、(ORP)1mV  As ONE Part Number  1-1944-01  Outer Dimensions, Width W x Depth D x Height H (mm)  68×45×177  Mass (g)  About 489  Data Output  SD card, RS232C, USB output  Display Resolution  pH / 0.01pH, redox potential (ORP) / 1mV 
    Rating:
    60%
    (2)
    from S$389.90
    Min. 2 days
  38. Field type portable water quality meter D-200 series
    HORIBA Field type portable water quality meter D-200 series
    Waterproof and dustproof structure! Scratch resistant screen. Equipped with a backlight function as standard! Strong against impact and easy to hold. Easy-to-understand indicator! Simple operation! * The product is only the main body and does not have electrodes. * Products with proofreading cann... Read More
    Dust / Water Protection  IP67 equivalent  Display  Monochrome custom LCD with backlight 
    from S$979.90
    Min. 2 days
  39. pH Composite Electrode
    DKK-TOA pH Composite Electrode
    from S$399.90
    Min. 2 days
  40. Portable Tester
    CEM Corpration Portable Tester
    You can measure pH / EC / temperature with one instrument. (PC5) We also have pH / temperature measuring instruments and EC / temperature measuring instruments. (PH5, EC5) For PH5 and PH5S, ORP can be measured by connecting the optional ORP electrode. There is also a needle-type pH meter that can... Read More
    Temperature Compensation (℃)  0～50.0  Power Input (V)  DC3, AAA battery x 4  Waterproof Protection Grade  IP67 
    from S$149.90
    Min. 2 days
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