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Pocket, portable and benchtop meters for pH, conductivity and TDS, listed with the buffers, standards and related supplies.
TL;DR
We supply pH and conductivity meters in Thailand: Hanna pocket testers and OHAUS and METTLER TOLEDO portable and benchtop models. Some, such as the Hanna HI98130, read pH, EC, TDS and temperature in one unit. Every meter, buffer and standard is quoted on request.
These examples cover different measurement needs. A wider range is not automatically a better fit; confirm the sample, electrode and exact kit before ordering.
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| Model | Measurement | What to check |
|---|---|---|
| Hanna HI98129 | Pocket pH/EC/TDS/temperature; EC 0–3999 µS/cm, 1 µS/cm resolution. | For combined measurements within this EC range. Compare sample suitability and ±2% full-scale EC accuracy. |
| Hanna HI98130 | Pocket pH/EC/TDS/temperature; EC 0.00–20.00 mS/cm, 0.01 mS/cm resolution. | For a higher EC range. Its 10 µS/cm display increment is coarser than HI98129's. |
| OHAUS ST300 | Portable pH/mV meter; pH 0.00–14.00, 0.01 pH resolution. | For moving between sampling points. Confirm the electrode and kit; this is not a conductivity meter. |
| METTLER TOLEDO FiveGo F2 + LE438 | Portable pH/mV meter; pH 0.00–14.00, 0.01 pH resolution. | For pH measurements at different sampling points. Confirm the LE438 variant and kit; F2 does not measure conductivity. |
| METTLER TOLEDO F20 + LE438 | Benchtop pH/mV meter; pH 0–14, 0.01 pH resolution. | For pH work at a bench. Check LE438 suitability and any data-output requirement. |
| OHAUS AB33M1-F | Benchtop pH/conductivity meter with two independent channels. | For both parameters at one bench. Confirm sensors, working ranges and the exact F kit. |
Include several models in one quotation request and ask about current availability and lead time.
Range: pH -2.00 to 16.00 pH
pH Accuracy (@25°C/77°F): ±0.2 pH
pH Range: -2.0 to 20.0 pH; -2.00 to 20.00 pH; -2.000 to 20.000 pH
pH Range: -2.0 to 20.0 pH; -2.00 to 20.00 pH; -2.000 to 20.000 pH
pH range / ช่วงวัด pH: 0–14 pH
EC Range: 0 to 2000 µS/cm
EC Range: 0.00 to 20.00 mS/cm
Specification Name: Detail
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Buyer guide
01
List pH and conductivity separately, including the expected range in µS/cm or mS/cm. If reporting TDS, record the conversion factor required by your method. A conductivity-derived TDS result does not identify individual dissolved substances.
02
Give the sample type, temperature and container dimensions, plus the existing meter and connector if replacing a probe. A milk sample, a viscous product and low-conductivity water can need different sensor designs. Confirm the exact electrode and meter combination before ordering.
03
The Hanna HI98130 listed in our catalog combines pH, EC, TDS and temperature. Its EC range is 0.00 to 20.00 mS/cm with 0.01 mS/cm resolution. That resolution equals 10 µS/cm, so a buyer needing finer low-conductivity readings should specify that requirement before choosing this high-range tester.
04
Choose buffers that cover the expected sample pH and that the meter recognizes. Include the required conductivity standard, electrode storage and cleaning solutions, and replacement-sensor needs. Ask for lot, expiry and certificates where required; an included starter sachet is not a recurring supply plan.
05
Specify portable or benchtop use, cable length, power and the output format you need. Ask the quotation to separate the instrument, sensor, standards and any calibration service. On receipt, check the model and kit suffix, included items and relevant certificates against the order.
Compare the EC range and resolution: HI98129 covers 0–3999 µS/cm in 1 µS/cm steps; HI98130 covers 0.00–20.00 mS/cm in 0.01 mS/cm steps, equivalent to 10 µS/cm. Both specify EC accuracy of ±2% of full scale. The high-range model does not offer finer low-range measurement.
No. Resolution is the displayed increment. For example, Hanna specifies 0.01 pH resolution and ±0.05 pH accuracy at 25 °C for HI98130. Compare both values and the conditions stated by the manufacturer against your method.
Yes, some models can. HI98130 is one catalog example, but the required ranges and sensor suitability still decide whether it fits. A combined tester does not make every pH electrode or conductivity application interchangeable.
No. On a conductivity-based tester, TDS is calculated using a conversion factor. Document that factor when comparing results across instruments; use the relevant analytical method when you need the concentration of a particular substance.
Start with where the sample will be measured. ST300 and FiveGo F2 are portable pH/mV examples; FiveEasy F20 is a benchtop example. Check the electrode, power supply, cable length and any data-recording requirements for the exact model. Portability alone does not establish accuracy, sensor suitability or conductivity capability.
Model comparisons use the manufacturer references below. Confirm the electrode, regional kit and sample requirements when requesting a quotation.
Specifications, compatibility and supplied documents vary by model and option. Check them against your method and the current manufacturer data sheet before ordering. Supplying equipment does not validate a method or certify compliance.
