The PHS-3E laboratory pH/ORP controller is a precise measuring tool for scientific research, environmental testing, medicine and food, metallurgy and chemical engineering in universities! Equipped with a 0.01 level high-precision measurement system, it supports pH/ORP/temperature multi parameter detection, combined with practical functions such as automatic calibration, data storage, and temperature compensation. The operation is simple and easy to use, and the data is stable and reliable, easily meeting the measurement needs of multiple scenarios such as acid rain detection, industrial wastewater analysis, drinking water monitoring, and daily chemical product quality control.
★★★★★
Features
Specifications
| Instrument level | 0.01 level |
| Measurement range | PH(-2—18 PH ) ORP( -1999 — +1999 MV) temp(-5—110.0 ℃) |
| Indication Error | ±0.01 pH; ±0.1% FS; ±0.2 ℃ |
| Resolution | 0.01 pH; 1 mV; 0.1 ℃ |
| Power Input | AC100—240V |
| Power Output | DC9V |
| Overall dimensions | 242×195×68mm(Height × Width × Depth) |
| Product weight | 0.9kg |
Standard Configuration
- PHS-3E PH meter
- E-301-QC type PH triple composite electrode
- REX-5 multifunctional electrode holder
- YW-18W power adapter DC 9V (positive inside and negative outside)
- PH buffer powder (5 packs each for 4.00, 6.86, 9.18)
- Dust cover (button type)
- Easy operation guide
- Instruction Manual
- Product Qualification Certificate
Core Highlights
- High precision measurement: pH measurement range -2.00~18.00pH, indication error ± 0.02pH, ORP measurement range -1999~1999mV, temperature range -5.0~110.0 ℃, accurate and traceable data
- Intelligent and convenient operation: 6.0-inch high-definition LCD display, intuitive button operation;
- Automatically recognize three types of standard buffer solutions: 4.00/6.86/9.18, support 1-3 point automatic calibration, even beginners can quickly get started
- Flexible measurement mode: supports balanced measurement (automatic locking after data stabilization) and continuous measurement (real-time monitoring of changes) to meet different experimental needs
- Complete practical functions: automatic/manual temperature compensation, 50 sets of data storage/retrieval/deletion, power-off protection, IP54 dust and waterproof, automatic shutdown setting, making experiments more worry free
- Multi scenario adaptation: Standard electrodes are compatible with regular samples, multiple optional electrodes cover special working conditions, and special consumables are used to meet diverse measurement needs in one stop
Featured Applications

- Pure water/ultrapure water testing: pH monitoring of ultrapure water in the electronics industry and laboratory deionized water (accurate measurement of low conductivity samples)
- Solid/planar sample detection: pH measurement of soil, food blocks, material coatings, etc. (such as soil pH assessment, metal surface oxidation potential detection)
- Low conductivity sample detection: pH calibration of low conductivity samples such as high-purity chemical reagents and diluted solutions
- Chemical processes:Keeping an eye on how well acid-base neutralization reactions and oxidation-reduction reactions are going to make sure they are finished(like pH closed-loop control in chemical raw material production).
- Metallurgical processing:changing the pH or ORP value of the electroplating solution(like controlling the oxidation-reduction potential in the chrome plating process) and checking the pH of the metal surface treatment solution.
- Organic synthesis: checking the pH of organic solvents and synthetic raw materials to make sure that the reaction doesn’t slow down because of too much or too little acid or base.

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For scientific research and quality control in production, accurate measurement is very important. The PHS-3E laboratory pH/ORP controller is very accurate, easy to use, and can be used in many different fields, including university scientific research, environmental monitoring, medicine and food, chemical metallurgy, and more. From regular liquid samples to samples from specific working conditions, from simple education to complicated scientific research, we have all the electrodes and supplies you need in one place to suit all of your measurement needs.
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