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COLO.Science — Electrochemistry · pH meters
VIKING-PH125 Benchtop pH Meter
VIKING-PH125 is a benchtop pH meter with a 5″ colour touchscreen for pH, ORP and relative mV: −2.00–20.00 pH, ±0.01 pH, 1–5 point calibration from 25 buffers, calibration reminder, 1000-result GLP memory, USB and RS-232.
Overview
Applications
- Quality control: pH of raw materials, intermediates and finished products.
- Water and environment: drinking water, wastewater and surface water.
- Food and agriculture: food, beverages, soil extracts and nutrient solutions.
- Teaching laboratories: routine pH and ORP exercises.
Why VIKING-PH125
- pH accuracy: ±0.01 pH
- Calibration: 5 buffer groups (25 buffers), auto recognition, custom buffers, calibration reminder 1–1000 h
- Data memory: 1000 results, GLP
- Data output: RS-232 and USB (printer optional)
Technical specifications
| Model | VIKING-PH125 |
| SKU | PRO5357 |
| Display | 5.0″ colour touchscreen |
| Measurement modes | pH / mV (ORP) / relative mV |
| pH range | −2.00 to 20.00 pH |
| pH resolution | 0.01 pH |
| pH accuracy | ±0.01 pH |
| mV range | −2000.0 to 2000.0 mV |
| mV resolution | 0.1 mV |
| mV accuracy | ±1 mV (0.05 % FS) |
| Temperature range | −30.0 to 105.0 °C (ATC / MTC) |
| Temperature accuracy | ±0.2 °C |
| Calibration | 5 buffer groups (25 buffers), auto recognition, custom buffers, calibration reminder 1–1000 h |
| Calibration points | 1–5 |
| Data memory | 1000 results, GLP |
| Endpoint mode | Auto / manual |
| Extras | Continuous mode; live curve pH or mV vs. reading number |
| Data output | RS-232 and USB (printer optional) |
| Inputs | pH: BNC (>3 × 10¹² Ω); temperature: Cinch, NTC 30 kΩ |
| Power supply | 220 V AC 50/60 Hz, 9–12 V DC |
| Dimensions | 250 × 165 × 65 mm |
| Electrode holder | 360°, height ≈ 320 mm, reach ≈ 400 mm |
ELECTRODES AND ACCESSORIES
Electrodes and accessories for the VIKING-PH125 benchtop pH meter
The VIKING-PH125 is delivered with a 3-in-1 pH electrode (pH + temperature, BNC + Cinch), electrode holder, pH buffers 4.01 / 6.86 / 9.18 and 3 mol/L KCl filling solution.
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3-in-1 pH electrode
Combined pH electrode with built-in temperature sensor; BNC + Cinch (NTC 30 kΩ) connectors, refillable 3 mol/L KCl.
Standard delivery
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pH buffers 4.01 / 6.86 / 9.18
Three standard buffer solutions for the first calibration.
Standard delivery
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Electrode holder
Holder arm with 360° rotation, height ≈ 320 mm, reach ≈ 400 mm; mounts on the meter base or a stand-alone base.
Standard delivery
More electrodes and accessories
- 3 mol/L KCl filling solution
- ORP electrode (platinum)
- RS-232 printer
Tell us your sample and we will confirm the right electrode for your VIKING-PH125 benchtop pH meter. Full electrode range: Electrochemistry catalogue →
Selection guidance
VIKING-PH125 is chosen for daily laboratory pH with touchscreen operation, GLP memory and USB. COLO.Science helps you choose the electrode and consumables.
Configuration checklist
- Resolution: 0.01 pH for routine work, 0.001 pH for research and pharma.
- Documentation: GLP memory, USB and printer output.
- Samples: viscous, low-conductivity or hot samples may need a special electrode.
Sales and support for international customers
COLO Lab ExpertsPolje ob Sotli 4, SI-3255 Buče, Slovenia
Phone: +386 70 713 437 · Email: sales@colo.si · Web: colo.si
We supply laboratories across Europe directly and through partners. B2B prices are quoted net, excluding VAT.
Selection, commissioning and service support
Choosing a laboratory instrument is easier when the application is clear from the start. Tell us what kind of samples you measure, how many per day, which range and accuracy you need and which standards or internal procedures you follow. Based on that, our team recommends a suitable configuration together with the accessories and consumables that make sense for routine work, so you do not pay for options you will never use.
After delivery we stay available for practical questions: first start-up, calibration routine, daily care, storage and typical operator mistakes that shorten the life of sensors and wearing parts. If results begin to drift or the device reports an error, describe the symptoms and we will suggest what to check first before any repair is considered.
Spare parts, replacement sensors and calibration materials can be ordered later through the same contact. For a quotation or technical advice, use the request button on this page and add a short description of your application.
