Description
SX731 portable pH/ORP/conductivity/TDS/salinity/resistivity meter delivers laboratory-grade multiparameter water analysis in a compact, field-ready format. Dust- and waterproof to IP57 and supplied in a robust carrying case, it is ideal for water treatment, environmental monitoring, beverage production, aquaculture, groundwater, surface water and aquarium applications. pH range is −2,00 to 19,99 with resolution 0,1/0,01 and overall accuracy ±0,02 pH; automatic temperature compensation covers 0 to 100 °C. ORP spans −1999 to +1999 mV at 1 mV resolution. Conductivity extends across 0,00 μS/cm to 199,9 mS/cm with TDS 0–100 g/l, salinity 0–100 ppt and resistivity 0–100 MΩ·cm; instrument accuracy is ±1,0 % F.S. Cell constants 0,1/1/10 cm⁻¹ and selectable reference temperatures support broad sample types. The kit includes 201T-S pH/temp electrode, 301Pt-S ORP electrode and 2301T-S conductivity/temp electrode with BPB technology, plus calibration solutions. Digital filtering aids response and precision; 300 data sets can be stored and recalled. Powered by two AA batteries, the meter measures 65×120×31 mm and weighs 180 g. Complete test kit from manufacturer APERA Instruments carries CE and ISO 9001:2015 marking with three-year instrument warranty.
This article is part of Conductivity meters & cells, in pH & electrochemistry. See also pH meters.
Key features
- Pack size: 1 pc
- Product type: Multi-parameter portable meter
- Measurable parameters: pH, ORP, conductivity, TDS, salinity, resistivity, temperature
- Protection rating: IP57
- pH range: −2,00 to 19,99 pH
- Data storage: 300 groups
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Questions about SX731 portable pH/ORP/Conductivity (EC)/TDS/Salinity/Resistivity Meter Kit
What is this article?
SX731 portable pH/ORP/Conductivity (EC)/TDS/Salinity/Resistivity Meter Kit is the article on this page. Luminix Health distributes APERA Instruments for laboratory use. It sits in Conductivity meters & cells, inside pH & electrochemistry, in Instruments de précision.
A conductivity meter and its cell measure how well a solution carries current. The cell constant is the geometry that converts conductance to conductivity, and it is calibrated with a standard. Temperature compensation matters because conductivity rises with temperature.
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 Conductivity meters & cells. The catalogue is Instruments de précision.
Shelves beside this one are pH electrodes & sensors, pH meters, Dissolved oxygen & multiparameter meters, Titrators & electrochemistry systems and pH & electrochemistry accessories.
What should I check before I order?
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.