Description
PH400S portable pH meter is a compact handheld instrument for precise determination of pH and temperature in laboratory and field work. It is supplied with the 201T-S pH electrode from APERA Instruments, featuring a low-impedance glass membrane for rapid response and an integrated temperature sensor that enables automatic temperature compensation from 0 to 100 °C. The pH measuring range is 0,00 to 14,00 at 0,01 resolution with an accuracy of ±0,01 ±1 digit; mV range is ±1000 mV. Dust- and waterproof to IP57, the robust housing suits harsh environments. GLP data management stores up to 500 data groups with numbering, date, time, value, unit and temperature. USB output supports data transfer to a PC or real-time logging. Simple 1- to 3-point calibration, self-diagnosis and a large backlit LCD that simultaneously displays pH, temperature and calibration status simplify routine use. The complete set includes the meter, 1 m electrode cable, calibration solutions (4,00 / 7,00 / 10,01 pH, 50 ml each), USB cable, PC-Link software and carrying case. Meter dimensions are 86 × 196 × 33 mm at 335 g; with case the package weighs 1,6 kg. Power is provided by four AA batteries.
This article is part of pH meters, in pH & electrochemistry.
Key features
- Pack size: 1 pc(s)
- pH measuring range: 0,00–14,00
- pH accuracy: ±0,01 ±1 digit
- Protection class: IP57
- Memory capacity: 500 data groups
- Electrode included: 201T-S pH electrode
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Questions about PH400S Portable pH Meter Kit, with GLP Data Management and USB Output
What is this article?
PH400S Portable pH Meter Kit, with GLP Data Management and USB Output is the article on this page. Luminix Health distributes APERA Instruments for laboratory use. It sits in pH meters, inside pH & electrochemistry, in Lab instruments.
A pH meter reads the electrode and displays pH, after calibration with at least two buffers. A meter that cannot be calibrated is a voltmeter. Resolution to 0.001 is not the same as accuracy. Portable and benchtop meters differ in the electrodes they accept and in the data they store.
A pH meter is a voltmeter on a glass electrode. The voltage tracks hydrogen-ion activity, and the electrode is converted to pH only after it is adjusted with buffers of known value. Conductivity measures how well a solution carries a current, which for dilute salts tracks concentration. Dissolved oxygen and titration are further electrodes on the same idea: a sensor, a standard, and a reading that is only as fresh as the calibration. Buffer values and chemical identity sit on PubChem. Accreditation of the calibration laboratory is the field of BELAC and EURAMET.
Which category should I open next?
The category is pH & electrochemistry. The sub-category is pH meters. The catalogue is Lab instruments.
Shelves beside this one are pH electrodes & sensors, Conductivity meters & cells, Dissolved oxygen & multiparameter meters, Titrators & electrochemistry systems and pH & electrochemistry accessories.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.

