FAQ

1. About Our Company

Q1: What does Walter Technologies specialize in?

Walter Technologies focuses on the development and export of professional water quality testing instruments, including water quality analyzers, digestion instruments, pH meters, conductivity meters, dissolved oxygen meters, and portable field instruments. We provide high-accuracy solutions for laboratory and on-site water analysis.

Q2: Where is your company located? Do you manufacture in China?

Our business is registered in Hong Kong while our manufacturing and R&D base is located in China. This allows us to offer high-quality products with competitive pricing for international markets.

2. Products & Technology

Q3: How is Walter Technologies’ water quality analyzers different from ordinary photometer/spectrophotometer or and other brands analyzers on the market?

Our photometers and spectrophotometers analyzers are designed specifically for the application of practical water quality analysis, not just basic optical measurement.

Compared with ordinary photometers:

• Standard photometers or spectrophotometer only provide simple absorbance or transmittance readings.

• Walter’s analyzers include pre-programmed measurement curves for most water quality parameters, developed through extensive method research.

• This dramatically improves measurement accuracy and efficiency, allowing users to obtain reliable results without manually creating calibration curves or methods.

Compared with other water quality spectrophotometer brands:

• Our instruments offer lower cost while maintaining high accuracy, making them more economical for laboratories and field users.

• Our instruments feature strong reagent compatibility, supporting most reagent brands in the market.

• We also provide custom method development, allowing users to add new water quality parameters or import customized calibration curves on demand.

• Despite the flexibility, measurement precision and repeatability remain consistent, thanks to our stable optical system and intelligent calibration algorithm.

This combination of high accuracy, strong application focus, reagent flexibility, method customization, and cost efficiency make Walter Technologies’ photometers and spectrophotometers analyzers uniquely advantageous for professional water quality testing.

Q4: What advantages do Walter Technologies’ digestion instruments have compared with other brands?

Walter Technologies’ digestion instruments offer higher accuracy, faster heating, and stronger application-focused design than many standard digestion blocks on the market. They are engineered to ensure consistent digestion performance for critical water quality parameters.

Key advantages include:

• More precise temperature control

Equipped with intelligent PID temperature control, our digesters achieve ±1.5°C accuracy with 0.1°C resolution. This ensures that every sample reaches the correct digestion temperature, improving the reliability and repeatability.

• Much faster heating speed

Using advanced thick-film heating technology, our digesters reach target temperatures significantly faster than typical models. Rapid heating shortens overall testing time and provides more stable temperature curves throughout the digestion cycle.

• Pre-programmed digestion methods for major water quality parameters

Unlike generic digesters that require manual settings each time, Walter instruments come with preloaded digestion time and temperature profiles for COD, TP, TN, NH₃-N, and other common parameters.

This greatly reduces operator error and ensures consistent analytical accuracy.

• Full flexibility with user-defined digestion settings

For special applications or research purposes, users can freely adjust digestion time, temperature, ramping steps, and cycles. This provides broad flexibility while maintaining high measurement accuracy.

• Multiple models with different digestion well capacities

Our lineup includes 6-well, 12-well, and 24-well models, allowing customers to choose the ideal configuration based on sample volume, workflow requirements, and budget.

This makes the product family suitable for small labs, routine testing centers, and large industrial monitoring units alike.

• Stable and uniform heating for better analytical results

Consistent heat distribution across all wells ensures uniform digestion, which is essential for obtaining reproducible and accurate analysis results.

Q5: What advantages do Walter Technologies’ pH meters and conductivity meters provide when measuring pure water and ultrapure water?

Walter Technologies’ benchtop pH and conductivity meters are designed as laboratory-grade instruments at an affordable price, offering superior stability and accuracy for challenging low-conductivity water samples.

Key advantages include:

1. Accurate measurement of pure and ultrapure water

Unlike many low-cost meters that struggle with drifting readings in low-ion environments, our instruments are optimized for pure water and ultrapure water measurement, providing stable, precise results even at very low conductivity levels.

2. Higher stability than ordinary brands

Standard commercial meters often show signal noise, slow stabilization, or strong drift when measuring high-purity water.

Walter instruments solve these issues through:

• advanced anti-interference circuitry

• intelligent electrode management

• temperature compensation

• improved signal filtering

This ensures fast stabilization and accurate readouts.

3. Lower cost compared with high-end professional instruments

While high-end laboratory analyzers (Hach, WTW, Thermo, Mettler) are accurate but expensive, our meters provide similar measurement stability and accuracy at a much more accessible price point, making them ideal for laboratories, universities, water treatment plants, and production lines.

4. Intelligent Electrode Management for better measurement security

The instruments automatically recognize intelligent electrodes and transfer the latest calibration data from each electrode’s internal chip, reducing errors and ensuring consistent performance.

Q6: Do your portable instruments support outdoor use?

Yes. Many portable devices are rated IP67 or IP68, with optional carrying cases, holders, and protective frames suitable for harsh field conditions.

3. Ordering & Customization

Q7: Do you offer ODM services?

Yes. We provide full-scope ODM development services that allow clients to customize hardware, software, multilingual UI / manuals, packaging and labeling design based on their application needs and market requirement, helping them build differentiated products without the high cost and long timeline of in-house R&D.

Q8: What is your minimum order quantity (MOQ)?

MOQs vary by product type. For most instruments, MOQ = 1 unit for evaluation or distribution testing.

Q9: What payment methods do you support?

We support TT (bank wire), LC (for large orders), PayPal (samples), and Bank transfers (USD preferred).

4. Shipping & Warranty

Q10: Do you ship internationally?

Yes. We ship worldwide via DHL, FedEx, UPS, TNT, air freight, and sea freight.

You may also use your own freight forwarder.

Q11: How long is the lead time?

• Standard models: 5–10 days

• ODM: 20–30 days

Q12: What is your warranty policy?

We provide 1-year warranty for instruments.

Lifetime technical support is available.

5. Technical Support & After-Sales Service

Q14: Do you provide user manuals and SOP guides?

Yes. All products come with English manuals. Additional SOPs, method notes, and application guides are available upon request.

Q15: Can you provide remote technical support?

Yes. We offer support via email, video call, remote computer assistance, and step-by-step troubleshooting guides.

Q16: What should I do if the instrument needs repair during the warranty period?

If your instrument experiences a malfunction within the warranty period due to manufacturing or component-related issues, we will provide repair service free of charge. However, because our products are precision analytical instruments, we strongly advise against any form of self-repair, disassembly, or replacement of internal components.

Unauthorized repairs may cause further damage, affect measurement accuracy, or void the warranty.

For all warranty repairs, please follow our standard procedure:

1. Contact our support team first to describe the issue and receive troubleshooting guidance.

2. If a return is needed, the customer is responsible for one-way shipping costs when sending the unit back to us.

3. After the repair is completed, we will cover the return shipping and send the instrument back to you.

This ensures your device is serviced professionally, calibrated properly, and restored to stable performance without compromising long-term reliability.