The PS-61/61W portable PH/ORP controller is the first choice for mobile measurement in the fields of light industry, chemical industry, pharmaceuticals, environmental protection, scientific research and education! Equipped with microprocessor intelligent control, no external power dependence, the body weighs only 0.5kg, supports precise measurement of pH/ORP/temperature multiple parameters, adapts to one point/two point/three point automatic calibration, simple operation, stable performance, and can be put into use after 5 minutes of preheating, easily meeting the needs of multiple scenarios such as rapid on-site testing, laboratory precision analysis, and mobile quality control.
★★★★★
Features
Specifications
| measurement range | PH (0-14.00PH) ORP (± 1600mV) Temperature (0-60 ℃) |
| Accuracy | 0.01PH;±1℃ |
| zero drift | ≤ 0.01pH ± 1 word/2 hours |
| temperature compensation | PS-61: Manual temperature compensation from 0-60 ℃; PS-61W: Automatic temperature compensation |
| power supply | 1.5V battery/4 cells |
| Power consumption | 2W |
| input impedance | ≥ 1×1012 Ω |
| Solution temperature compensation | 0—60℃ |
| environmental conditions | Temperature range: 0-40 ℃; Relative humidity<85% |
| Overall dimensions | 180 × 80 × 30mm (length × width × height) |
| Product weight | 0.5Kg |
Standard Configuration
PS-61
Host: PS-61 PH electrode: E-201 three sets of PH standard solution
PS-61W
Host: PS-61W PH electrode: E-201 temperature electrode, three sets of PH standard solution
Series Core Differences
| Product Model | Core difference | Temperature compensation | Matching electrode | Core strengths | Applicable scenarios |
| PS-61 | Basic portable version | 0-60 ℃ manual compensation | E201-C Plastic Shell PH Composite Electrode | High cost-effectiveness, meeting conventional measurement needs | Routine on-site testing, laboratory basic measurement, teaching and practical training |
| PS-61W | Temperature compensation upgrade | 0-60 ℃ manual+automatic compensation | E-201-W plastic shell pH temperature electrode | Automatic temperature detection, no need for manual temperature measurement, more stable accuracy | Quality control testing, precise scientific research, and high demand on-site measurement that require precise temperature compensation |
Core Highlights
- The most portable: The body is 180 × 80 × 30mm and weighs only 0.5kg, so it’s easy to take around without any stress.
- Very accurate measurement: pH range: 0 to 14.00 pH (± 0.01 pH), ORP: ± 1600 mV, temperature: 0 to 60 °C, input impedance: > 1 × 10 ¹² Ω, minor zero drift
- Smart calibration: works with 4.00/6.86/9.18 standard buffer solutions, can automatically calibrate to one, two, or three points, and is easy for beginners to use.
- Easy to use: The LCD screen is easy to read, the buttons are easy to use, and you don’t need to go through a lot of training to utilize it.
- Lasts a long time and is easy to care for: The electrode comes with a special cleaning solution for impurities and a protection solution to make it last longer; Chosen imported materials for essential parts, robust and dependable performance
Featured Applications

- Environmental monitoring: on-site sampling of industrial wastewater and surface water, mobile monitoring of sewage treatment plants
- Food and pharmaceuticals: pH control in food processing, pH testing of pharmaceutical preparations
- Light Industry and Chemical Industry: Mild Testing of Daily Chemical Products, pH/ORP Monitoring at Chemical Reaction Sites
- Research education: practical training in universities, field sample collection and analysis, laboratory routine measurement
Technical Support
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The PS-61/61W portable PH/ORP Controller is great for measuring on the go in many different fields. Its main benefits are that it is very portable, accurate, and stable. The basic model is cheap and works well in most situations. The improved automatic temperature compensation model, on the other hand, fulfills accuracy standards. It is a one-stop shop for all of your measurement, calibration, and maintenance needs, along with a full line of supporting items.
Each instrument goes through stringent quality checks and comes with full after-sales and competent technical assistance. This means you may purchase without concern and use it easily. Pick the right model and use the portable and accurate measurement expertise to help you get your task done faster!
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