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Authorized JUMO distributor Linxin Technology provides selection consulting, genuine product supply, and calibration services for JUMO temperature sensors, pressure transmitters, and water quality analyzers.

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Order online directly

Authentic JUMO instruments are available for selection and ordering directly in our online store.

JUMO Digital Pressure Transmitter on a Blue Background
SmartStressMeasure

Featured Products

The JUMO digital pressure transmitter features an integrated local display, providing stable and traceable measurement readings for compressed air and process pipelines.

Hygienic temperature sensor for stainless steel food-grade piping
GermanyJUMOJumao

JUMO Authorized Distributor

Authorized JUMO distributor in Germany. All JUMO instruments, including temperature sensors, come with official authorization documents and serial numbers traceable to the original manufacturer.

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CalibrateandServices

Periodic Calibration

On-site calibration and full lifecycle services keep your measurement loops audit-ready year-round.

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JUMO Official Authorization DocumentAuthorization IDJAD_AC_2025064

JUMO Authorization Letter: Linxin Technology holds official authorization from the manufacturer, valid until 2027/9/30.

As an authorized JUMO distributor, Linxin Technology (Shanghai Linxin Information Technology Co., Ltd.) holds the Authorized Dealer Certificate issued by JUMO China. We are authorized to sell JUMO products in the electrical drive industry within East China and provide technical support and after-sales service to customers. The original authorization letter is available as a PDF file for download, suitable for supplier audits, bidding documentation, and quality system archiving.

Authorization ID
JAD_AC_2025064
Issuer
JUMO China
Issue Date
2025 10, 1
Download Authorization Letter PDFJUMO Authorization DetailsPDF · Valid from 2025 to 2027 · Save after opening in a new window
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Video

Interview: How Lin Xin Built a Localized Service Chain Around Genuine JUMO Instruments

Pressure transmitter installed on the vacuum pump line
Technical Article

Stable Vacuum Measurement: JUMO Pressure Transmitters in Vacuum Pump Systems

Contact Sales

+86 15201939701
linxin@panbu.com

Our measurement engineers will reply with model recommendations, stock status, and quotes within 1 business days.

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Electra Mining Africa

2026/9/7 - 2026/9/11

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Johannesburg Expo Centre (Nasrec)

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Power & Electric Expo

2026/9/8 - 2026/9/10

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Abidjan Exhibition Park

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Gastech International Gas Technology Exhibition

2026/9/14 - 2026/9/17

Bangkok

Bitec Exhibition Hall EH101 Booth

Company News

From Green Operations to Green Empowerment: Explore Our Low-Impact Service Centers

Sustainability is a core practice in modern manufacturing. Our service center uses energy-efficient calibration stations, recyclable packaging, and paperless calibration records to ensure every instrument delivered has a smaller environmental footprint throughout its entire lifecycle.

Learn more
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Use Cases

Discover why factories and equipment manufacturers across industries choose Linxin for genuine JUMO measurement technology.

Tech Insights

Selection criteria, media compatibility, and operating condition analysis. Compiled by the measurement engineer; valid indefinitely.

Water quality analysis sensors installed in the water treatment plant
2026-10-28Book5minutes

How to Determine Calibration Intervals for Water Quality Sensors: Maintenance Rhythms for pH, Conductivity, and Dissolved Oxygen

Based on real-world conditions for drinking water, circulating cooling water, and wastewater, here are the calibration intervals, cleaning methods, and failure indicators for pH, conductivity, and dissolved oxygen sensors: ### 1. pH Sensors * **Calibration Interval** * **Drinking Water:** Weekly to bi-weekly (high stability). * **Circulating Cooling Water:** Daily to weekly (subject to scaling and biological growth). * **Wastewater:** Daily or per batch (high variability and fouling risk). * **Cleaning Method** * **General:** Rinse with deionized water. * **Scale/Oil (Cooling/Wastewater):** Soak in mild acid (e.g., 0.1M HCl) for scale; use enzymatic detergent or mild surfactant for organic/oil films. Avoid abrasive scrubbing. * **Protein/Biofilm (Wastewater):** Soak in pepsin/HCl solution or specialized bio-cleaning agent. * **Failure Indicators** * Calibration fails repeatedly (>3 attempts) or slope/offset drifts beyond ±5%. * Response time exceeds 60 seconds. * "Slope" value <90% or >105% of theoretical Nernstian response. * Drift in stable buffer solutions. ### 2. Conductivity (EC) Sensors * **Calibration Interval** * **Drinking Water:** Monthly. * **Circulating Cooling Water:** Weekly (due to concentration cycles and additives). * **Wastewater:** Bi-weekly or as needed (high particulate load). * **Cleaning Method** * **General:** Rinse with deionized water. * **Fouling/Scaling:** Ultrasonic bath or soak in mild acid/detergent. For severe scaling, use a soft brush gently. * **Organic Buildup:** Use alcohol or specific organic solvent cleaners. * **Failure Indicators** * Cell constant deviates significantly from factory settings. * Reading does not stabilize or fluctuates wildly without flow changes. * Electrode impedance is too high (indicates coating). * Physical damage to the cell plates or gasket leakage. ### 3. Dissolved Oxygen (DO) Sensors * **Calibration Interval** * **Drinking Water:** Weekly (air saturation check). * **Circulating Cooling Water:** Daily to weekly (temperature fluctuations and biological activity). * **Wastewater:** Daily (critical for process control). * **Cleaning Method** * **Membrane:** Replace membrane cap every 1–4 weeks depending on fouling. Clean electrode tip with soft cloth/water. * **Electrode Tip:** Gently wipe with lint-free cloth soaked in water or mild detergent if coated. * **Severe Fouling:** Soak in dilute bleach (for organics) followed by thorough rinsing (check manufacturer guidelines first). * **Failure Indicators** * Long stabilization time (>2 minutes in stirred air-saturated water). * Zero point cannot be reached in nitrogen-purged solution. * Slope error >5% during two-point calibration. * Current signal drops below expected range despite adequate oxygen levels. * Membrane appears torn, yellowed, or clogged.

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Industrial temperature sensor probe mounted on stainless steel piping
2026-10-18Book5minutes

JUMO Temperature Sensors: Selection Logic for PT00 vs. Thermocouples Across Four Operating Conditions

Compare the application boundaries of platinum resistance thermometers and thermocouples across four dimensions: response speed, maximum temperature limit, vibration resistance, and signal transmission distance. Additionally, list selection verification criteria for hygienic, explosion-proof, outdoor, and high-vibration measurement points.

Read full article
Industrial temperature sensor placed on a wooden workbench
2026-09-26Book6minutes

HVAC vs. Hydrogen: Fundamental Differences in Sensor Selection Logic

Starting with temperature, pressure, and water quality analysis, we break down the selection logic differences between HVAC and hydrogen production industries regarding media compatibility, impact resistance, explosion-proof certification, and high-purity monitoring.

Read full article

Procurement and Services FAQs

Common questions about authorization, product scope, selection support, calibration after-sales service, and online payment are answered directly here.

What is the JUMO brand?

JUMO is a German manufacturer of industrial instruments for measuring temperature, pressure, flow, level, and water quality. Its products serve HVAC, food & beverage, chemical & pharmaceutical, energy & power, and water treatment industries. In Chinese, it is commonly referred to as "JUMO" or "German JUMO," both denoting the same German measurement technology company.

Are JUMO and "Jiǔmào" the same brand? How can I find an authorized distributor for JUMO in China?

The brands "JUMO 久茂", "久茂 JUMO", and "德国久茂" all refer to Germany's JUMO. Linxin Technology (Shanghai Linxin Information Technology Co., Ltd.) holds an Authorized Dealer Certificate issued by JUMO China, with authorization number JAD_AC_2025064. You can view the scope of authorization and download the original PDF from the Authorization section on the homepage or the About Us page.

Is Linxin Technology an authorized agent of JUMO, Germany?

Yes. Linxin Technology Co., Ltd. is an authorized distributor of JUMO from Germany. All sensors and instruments supplied are sourced directly from the original manufacturer. The authorization letter can be viewed and downloaded as a PDF on the homepage's authorization section or the "About Us" page.

What is the authorization number for JUMO by Linxin Technology, and when does it expire?

Authorization No. JAD_AC_2025064, issued by JUMO China to Shanghai Linxin Information Technology Co., Ltd., valid from 2025/10/1 through 2027/9/30. Authorized scope: sales of JUMO products in the electrical drive industry within China's East China region, including provision of technical support and after-sales service to customers.

Can the JUMO authorization letter be downloaded for supplier audits?

Yes. The homepage authorization section and the "About Us" page both provide access to view and download the authorization PDF, which includes the authorization number, issuing party, authorized party, and validity period. This document can be used directly for supplier onboarding reviews, bidding documentation, and quality system archiving.

Which JUMO products does Linxin Technology distribute?

Covers temperature sensors and switches, dial thermometers and electrical contact thermometers, pressure and differential pressure transmitters, variTRON automation systems, and water quality analysis sensors for conductivity, pH/ORP, dissolved oxygen, turbidity, and more. Each product is labeled with a datasheet number and complete technical specifications.

What types of JUMO temperature sensors are available?

JUMO temperature sensors are categorized into four groups on this site: resistance and thermocouple temperature sensors, temperature switches, dial and electrical contact thermometers, and associated process connections and protective sheaths. Filter by measurement range, sensing element, protection rating, and certifications, then add items to compare for full technical specifications.

How to verify that you have purchased an authentic JUMO product directly from the German manufacturer?

As an authorized JUMO distributor in Germany, every sensor comes with official authorization documents. Serial numbers are traceable to the original manufacturer, the entire supply chain is documented, and we can support your quality audits.

Need help choosing the right model? Get selection support.

Yes. The product page supports filtering by measurement range, sensing element, protection class, and certifications, with a comparison feature to view parameter differences. If the datasheet is insufficient for decision-making, submit an inquiry and our engineers will provide model recommendations based on your operating conditions.

How long does it take to receive a response after submitting an inquiry?

Every inquiry will be answered within 1 business days, including model recommendations, lead times and quotes, or clarification on any technical questions.

Is calibration and after-sales technical support provided?

In addition to supply, Linxin Technology provides instrument calibration, on-site commissioning, and after-sales technical support. Services can be scheduled during business days.

Can I pay the service fee online? What payment methods are supported?

Supported. Service-related payments, including calibration services, on-site debugging, technical support, and spare parts, can be paid online via the "Service Payment" page. We offer Alipay website payment and WeChat Scan-to-Pay options.

Do I need to log in before making an online payment? How do I log in?

Required. Please log in with a mobile phone SMS verification code before payment. The code will automatically complete registration and login, allowing you to check your order payment status after logging in.

How to contact Linxin Technology?

You can reach us by phone at +86 15201939701, email at linxin@panbu.com, or visit our office at Building C, No. 888 Huanhu West 2nd Road, Shanghai Free Trade Zone. Our business hours are Monday to Friday from 9:00 to 18:00 (GMT+8).

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JUMO Authorized Distributor

Authentic products with traceable supply chain.

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Measurable Parameter Categories

From Temperature to Water Quality Analysis

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Number of service industry entities

From HVAC to hydrogen production

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RFQ Response Time

Respond within 1 business days