Hangzhou Qiwei Instrument Co., Ltd. is one of the leading manufacturers and suppliers of portable ph pen in China. With a professional production team, we are able to meet the needs of the majority of our customers. Welcome to wholesale bulk portable ph pen in stock here from our factory. We also accept customized orders.
The Portable pH Pen is designed to measure the acidity of standard water tests, quality inspections, and other appropriate liquid sample applications. Its small pen-style design combines the display, controls, and sensing assembly, making it portable, and used at various testing locations.
More convenience can be gained by display options like an LCD screen with backlight and an automated power-off function, depending on the confirmed model configuration. Before placing an order, buyers should check these features against the formal specifications of the chosen model.
The compact pH pen also offers the opportunity to create a compact product line under a distinctive brand identity for distributors, laboratory supply companies, resellers of water-testing equipment, and private-label brands. Qiwei can talk with company customers about product selection, branded requirements, packaging preferences, and order quantities.
product key technologies
This Portable pH Pen is specially designed for rapid on-site water quality analysis outdoors. Adopting an integrated pen-shaped design, it is exquisite and compact, easy to store in a pocket or tool bag for great portability. After power-on, the screen simultaneously and intuitively displays the pH acidity and real-time temperature data of the water body.
The device has excellent dustproof and waterproof performance, and the electrode is replaceable independently, effectively extending the service life of the instrument.
With laboratory-grade precise measurement performance and the flexible advantages of outdoor mobile detection, it is an optimal portable device for quickly judging water acidity and alkalinity indicators in field applications.
Pre-Use Guidelines for the Device
1. Calibration Guidelines: Three-stage calibration must be performed by staff upon initial startup or whenever a brand-new detecting electrode is mounted. Dip the sensor head into calibration reference liquid and pause till constant digital outputs appear. The device's function keys allow adjustment of corresponding standard values to finalize the entire calibration sequence. A seven-day calibration cycle is recommended, and the frequency can be revised to fit on-site operational environments.
2. Probe Sanitization: Before conducting any tests, flush the probe with distilled water. This keeps residual particles from lowering detection precision. If the probe is covered with greasy dirt or protein matter, soak it in specialized cleaning liquid, and perform a full rinse afterwards.
Step-by-Step Testing Guide
1. Device activation & preheating: Start the instrument by pressing its power switch.
2. Placement in test liquid: Lower the sensor straight down into the sample solution. Make sure two-thirds of the probe body is under the liquid surface. Contact with the container base and side walls must be avoided, which could cause contamination and affect the electric field.
3. Readout confirmation & documentation: Pause until the figures remain stable, then document the measured data.
4. Post-test care & storage: After finishing all tests, flush the probe thoroughly with deionized water. Pat off surface moisture gently using filter paper; never wipe the probe to prevent static electricity issues. Immerse the probe in dedicated storage liquid to protect it from drying and losing normal performance.
Technical parameters
|
Model |
PH-20 |
PH-20W |
| Measurement coverage |
pH: 0.1-14.0 |
|
|
Resolution |
pH: 0.1; Temp: 0.1°C 1F |
|
|
Accuracy |
pH: ± 0.1; Temp: 1°C/2F |
|
|
PH calibration |
25℃ three-point calibration 4.0 6.9 9.2 |
|
|
Electrode |
Integrated electrode |
External attached electrode |
| Surrounding thermal condition |
0-50°C (32-122°F) |
|
| Energy supply module |
4*AAA batteries |
|
|
Size |
Φ40*185mm |
|
|
Weight |
88g |
|
|
Model |
PH-20BWZ |
PH-20WZ |
| Measurement coverage |
PH: 0.1-14.0 |
|
|
Resolution |
PH: 0.1; Temp: 0.1°C 1F |
|
|
Accuracy |
PH: ± 0.1; Temp:1°C/2F |
PH: ± 0.02; Temp:1°C/2F |
|
PH calibration |
25 ℃ three-point calibration 4.0 6.9 9.2 |
|
| Surrounding thermal condition |
0-50°C (32-122°F) |
|
| Energy supply module |
4*AAA batteries |
|
|
Size |
Φ40*185mm |
|
|
Weight |
88g |
|
|
Model |
PH-20 |
PH-20B |
PH-20BW |
|
Measurement coverage |
pH:0.1-14.0 |
||
|
Resolution |
PH: 0.1; Temp: 0.1°C 1F |
||
|
Accuracy |
PH: ±0.1; Temp: 1°C/2F |
||
|
PH calibration |
25°C three-point calibration (4.0 6. 9 9.2) |
||
|
Electrode |
Integrated electrode |
External attached electrode | |
| Surrounding thermal condition |
0-50°C (32-122°F) |
||
| Energy supply module |
4*AAA batteries |
||
|
Size |
Φ40*185mm |
||
|
Weight |
88g |
||
OEM pH Pen and Private Label Branding Solutions
Qiwei provides customized-order and OEM/OD M inquiry support for business customers looking to source laboratory instruments and water-quality testing equipment. For vendors and private-label companies, the compact pH pen can be evaluated as part of a customized product offering, subject to confirmation of the selected type and available fabrication options.
1. Custom Logo and Brand Identity
Businesses can post their company name, emblem artwork, target market, and chosen product presentation for review. Qiwei you assess which brand methods are possible for the selected model, including logo placement on the instrument or other authorized labelled components.
2. Customized Retail Packaging
Packaging requirements may vary between distributors, lab suppliers, online sellers, and local brands. Buyers can explore customized colour boxes, printed item information, user manuals, and accent presentation. The available options, painting requirements, and any further production costs should be confirmed before purchase authorization.
3. Private-Label Product Presentation
A steady product identity may help distributors build a recognized product range. Buyers may offer their chosen product calling, logo files, presentation artwork, language requirements, and market-specific labeling information for feasibility review.
4. Minimum Order Quantity and Retail Pricing
The minimum order quantity( MOQ) depends on the selected product and the requested customization. Common products and customized orders may have distinct quantity requirements. Call Qiwei to confirm the appropriate MOQ, test availability, device price, packaging cost, and production lead time.
For larger orders, demand a quantity-based quotation so that the prices may be reviewed against the required construction and order volume.
5. OEM/ODM Inquiry Process
To support the team assess your request successfully, offer the target industry, estimated amount, preferred branding method, packaging requirements, and desired delivery schedule. If applicable, add your brand artwork and packaging reference files.
Qiwei will examine the demand and verify which customization choices can be supported for the selected model. Last production should continue only after the product construction, artwork, packaging specifications, MOQ, and industrial terms have been agreed.
FAQ
1. What is a portable pH pen used for?
A portable pH pen is designed for easy pH measurement of appropriate liquid samples. Its portable form is useful for routine waters testing, academic applications, and other dimension tasks supported by the selected woman's specifications.
2. Does the acidity ink have a backlit LCD and automated power-off function?
These features depend on the specific type. Please examine the product specs or call Qiwei to confirm the screen and power-management features before ordering.
3. How often should a compact pH pen become calibrated?
Calibration speed depends on the device, sample conditions, testing frequency, and required dimension quality. Follow the manufacturer's recommendations and confirm performance with appropriate regular buffers.
4. Why does the pH reading differ?
Possible causes include a polluted or deteriorated electrode, inadequate stabilization time, inadequate validation buffers, sample temperature changes, or wrong measurement technique. Clear the sensing area and reset according to the product manual.
5. How should the pH pen sensor be stored?
Clear the sensing area and fit the safe cap after apply. Observe the model-specific store instructions, including any needs for electrode storage solution.
6. Can I order portable pH pens with my own brand?
Qiwei accepts customized-order questions. Send your logo artwork, desired packaging, target market, and estimated purchase quantity so the team can verify the applicable branding options.
7. What is the MOQ for OEM pH pen purchases?
The minimum order number depends on the design and personalization requirements. Call Qiwei to verify the Minimum for your requested emblem, packaging, and product configuration.
8. May I request wholesale prices for different quantities?
Yes. Submit your needed amount, destination country, and packaging requirements to demand a quotation based on the chosen product configuration and order volume.
9. Can I obtain carton dimensions and shipping weight before ordering?
Request the proved packaging specification, including units per carton, carton dimensions, net weight, and gross weight. These information should be verified for the ultimate product and packaging design before shipment.
10. May I request a trial before a bulk order?
Yes, we support small-batch orders.
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