Free quotations · Genuine products · Delivery across Thailand, export on request
Replacement pH electrodes and temperature probes: Ohaus, Mettler Toledo, Eutech and Bante electrodes, and Testo immersion, needle and fiberglass probes. Tell us your meter model and we will match the connector for a free quotation.
TL;DR
We supply replacement pH, ORP and conductivity electrodes and temperature probes in Thailand, including the OHAUS ST310 3-in-1 and METTLER TOLEDO LE438. Send the meter model first: the connector decides whether an electrode works, and the sample decides the junction and body. Every item is quoted on request.
Include several models in one quotation request and ask about current availability and lead time.
Measurement Range: pH=0 to 13
Reference: Single, Ag/AgCl
Reference: double, Ag/AgCl
Description: Refillable Combination pH Electrode with BNC + RCA Connector
Description: pH electrode
Reference: Single, Ag/AgCl
Reference: Single, Ag/AgCl
Recommended Operating Temperature: 480°C (900°F)
320 products · page 1 of 6
Hanna
3 variants: 1.5m · 1m · 2m
Choose a variant
Electrode selection guide
01
State the meter model and the connector: BNC, DIN, Quick Connect DIN, RCA or a digital sensor. A meter expecting a digital electrode will not read an analogue one, and a mismatched connector makes an otherwise correct electrode unusable.
02
Describe the sample, not only the parameter. A double-junction reference places a second barrier between the reference electrolyte and samples carrying sulfides, proteins or heavy metals that would poison a single junction. Samples with solids or high viscosity call for an open junction or a clog-prevention design.
03
Glass bodies resist solvents and are the general laboratory choice; plastic bodies are used where breakage is a hazard, in the field, or in food production. Flat and spear tips exist for surfaces and semi-solids, where a conventional bulb cannot make proper contact.
04
Say whether temperature compensation must come from the electrode itself or from a separate probe. A built-in sensor removes an item from the bench but ties temperature and pH to one replacement cycle.
05
An electrode is a consumable with a service life, not a permanent fitting. Budget storage solution, the correct filling solution for refillable types, cleaning solutions matched to the fouling, and membrane caps where a dissolved oxygen probe is used.
No. The connector (BNC, DIN, Quick Connect or a digital sensor) decides compatibility before any other property of the electrode. Send the meter model with the request and this gets checked first.
From the sample. A double junction adds a barrier between the reference electrolyte and the sample, which is the usual choice where sulfides, proteins or heavy metals are present and would poison a single-junction reference.
Glass is the general laboratory choice for chemical resistance. Plastic is used where breakage is a hazard, in the field, or in food production. Body material is a separate question from tip shape, which follows the physical form of the sample.
It is a consumable, and service life depends on the sample, temperature and storage rather than a fixed period. Keep storage solution on hand: a pH electrode should never be left dry or standing in deionised water, as both shorten its life.
Nothing above restates a manufacturer specification. Junction design, body material, operating range and service life are specific to the electrode, and compatibility is confirmed against the meter and sample you give us.
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.
