Free quotations · Genuine products · Delivery across Thailand, export on request
pH, conductivity and TDS meters only — pen, portable and benchtop — from Ohaus (ST20, ST300, AB23PH-F, AB33EC-F), Mettler Toledo FiveEasy F20 and FiveGo F2, Eutech PH1710 and CON150, Hanna, Bante and HM Digital, plus Takemura and Rapitest soil testers. Buffers and electrolyte solutions sit under Consumables & Reagents, replacement electrodes under Electrodes & Probes. Free quotation, fast reply.
Buyer guide
For a Thai QC laboratory or production team, a useful quotation names the meter, compatible sensor and calibration supplies together. Start with the sample and acceptance requirement, then compare range, uncertainty or accuracy specifications, and the records your method needs.
See the checklist and buying questions388 products · page 4 of 9
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.
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.
Request buffers that bracket the sample range and match the meter settings, the specified EC standard where needed, and suitable storage and cleaning solutions. State required pack sizes and certificates. Confirm the exact kit contents rather than assuming a meter includes a full year of consumables.
The HI98130 example follows its manufacturer specification. The buffer-selection references explain calibration range and solution care; the quoted sensor and method still determine the final setup.
This guide helps define a quotation. It does not replace your laboratory method, quality procedure or the current instructions for the selected instrument and sensor.
