As a commonly used precision instrument and equipment, pH meter is widely used in chemical industry, aquaculture, tap water, environmental protection, sewage treatment and other fields. Its market demand is huge, and the competition is also very fierce. Several domestic brands have emerged, and users have become more complicated in purchasing.
Today, the editor listed three popular domestic brands of PH meters for comparison, including Yueping, Qiwei, and Leici. The model parameters of the same measurement range, accuracy and type are compared in the following table. From the comparison in the table, we can understand that Leici’s measurement temperature range It is wider, and the flatter pH meter is lighter and more portable.
Users can choose according to their actual needs. For more comparisons of pH meter selection, you can log in to check the instrument to learn, or you can directly enter the website to visit http://cha.nbchao.com/list15.html
| Compare category | pH meter | PH-100 | PHB-4 | PHBJ-260 |
|---|---|---|---|---|
| product picture |  |  |  | |
| brand | Yueping | Qi Wei | Lightning magnetic | |
| place of origin | CHINA | CHINA | CHINA | |
| Model comparison | ||||
| type | portable | portable | portable | |
| Measuring range | 0～14.00PH | 0～14.00PH | 0～14.00PH | |
| precision | ±0.01 | ±0.01 | ±0.01 | |
| Specification comparison | ||||
| type | Pen style | portable | portable | |
| Measuring range (pH) | 0.00~14.00 | 0~14 | 0.00~14.00 | |
| Accuracy (pH) | ±0.01 | ±0.01 | ±0.01pH±1 character | |
| Temperature Compensation (℃) | 0~50 | 0~60(manual temperature compensation)/automatic temperature compensation | -5.0～105.0 (manual temperature compensation)/automatic temperature compensation | |
| input resistance | >1x1012Ω | |||
| Measuring temperature (°C) | 0~50 | 0~60 | -5.0～105.0 | |
| relative humidity (RH) | ＜85% | |||
| power supply | 6V (4*AG13 button battery) | 4 1.5V batteries | 4 AAA alkaline batteries | |
| Resolution (pH) | 0.01 | 0.01 | 0.01 | |
| stability | ≤0.01pH±1 word/2 hours | (±0.01pH±1 character)/3h | ||
| Dimensions (mm) | 188x38 | 180×80×30 | 210×86×50 | |
| Weight (g) | 82 | 500 | 500 | |
