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Digital pH sensor Memosens CPL59E

Rugged Memosens 2.0 pH sensor for laboratory measurements and random sampling in demanding media

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Digital pH sensor Memosens CPL59E

Rugged Memosens 2.0 pH sensor for laboratory measurements and random sampling in demanding media

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Benefits

  • The ion trap provides excellent performance and long-term stability even in harsh environments such as oxidizing agents
  • Large dirt-repellent PTFE-junction to avoid clogging
  • Innovative Memosens 2.0 technology: true plug and play and optimal traceability
  • Automatic registration and temperature compensation with the integrated temperature sensor
  • Tamper-proof data storage including serial number and calibration history for required quality management

Integrated technologies

Memosens technology
Manufacturer's warranty

Engineered for confidence

Our instruments are designed for long‑lasting performance, precise measurement, and dependable operation in demanding industrial environments. Each product includes a standard manufacturer’s warranty that reflects our commitment to quality and to the trust you place in our solutions.

Should a warranty case occur, the device will be assessed and the applicable remedy will be provided in line with the warranty terms – helping ensure a reliable and efficient resolution and supporting continued operation of your measurement point.

Request for extended warranty

If you require extended warranty coverage, simply contact your local Endress+Hauser representative. Our experts will advise you on the available options to match your application and risk profile, helping you protect your investment, reduce unexpected repair costs, and ensure reliable long‑term operation beyond the manufacturer's warranty period.

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Warranty terms apply

The manufacturer's warranty and extended warranty are subject to specific conditions. For full details, please refer to the locally applicable General Terms and Conditions (GTC), which can be found on the respective country page of our website.

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Endress+Hauser’s qualified service engineers ensure your measurement devices are commissioned right the first time, delivering application‑aligned accuracy, regulatory compliance, and operational confidence from startup onwards, anywhere in the world.

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With Endress+Hauser Smart Support, you benefit from faster issue resolution, higher uptime, reliable global expertise across the entire product lifecycle – and lasting peace of mind.

Committed to long‑term, sustainable performance

With deep field expertise, harmonized processes, and continuous monitoring, we accompany you with comprehensive service offerings – from initial start‑up through instrumentation maintenance to process optimization – as a true lifetime partner delivering improved outcomes.

For additional information, please contact your local Endress+Hauser representative.

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Technology
Memosens technology

Memosens 2.0: Cutting-edge sensor technology reloaded

Make life easier, increase process safety and stay connected with Memosens 2.0 digital technology.

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Product information

Rugged Memosens pH electrode for lab measurements and spot sampling in harsh environment
Digital pH sensor Memosens CPL59E
Specifications
Measuring / Application task pH
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Description

The Memosens CPL59E starts to perform best, when other sensors cannot handle the conditions. The pH electode is suited for harsh conditions as e.g. in chemical and process industries. Due to the ion trap it offers a high stability to oxidizing agents. This protects the sensor and the junction from drift and inaccurate measurement.

Field of application

Memosens CPL59E is suited for:​

  • Check of on-line measuring loops
  • Analysis of grab samples (on-site as well as in the laboratory)
  • Measurement at process points where regular checks are recommended​

In the following applications: ​

  • pH value setting in the media
  • Process water of chemical industry​
  • Neutralization​
  • Mixture monitoring​
Benefits
  • The ion trap provides excellent performance and long-term stability even in harsh environments such as oxidizing agents
  • Large dirt-repellent PTFE-junction to avoid clogging
  • Innovative Memosens 2.0 technology: true plug and play and optimal traceability
  • Automatic registration and temperature compensation with the integrated temperature sensor
  • Tamper-proof data storage including serial number and calibration history for required quality management
Downloads
Most downloaded
Technical Information (TI)
Memosens CPL59E pH measurement for laboratory measurements and random sampling
English version - 01/2022
Download
Operating Instruction (BA)
Memosens CPLxxE pH laboratory sensors with Memosens 2.0 technology
English version - 01/2022
Download
Competence Brochure (CP)
Memosens Laboratory Portfolio Make it easy and give me values I can trust
English version - 01/2026
Download
The CAD Drawings will be available after the configuration.
All downloads
11 Downloads
Technical Information (TI)
Most downloaded
Memosens CPL59E pH measurement for laboratory measurements and random sampling
English version - 01/2022
Download
Operating Instruction (BA)
Most downloaded
Memosens CPLxxE pH laboratory sensors with Memosens 2.0 technology
English version - 01/2022
Download
Competence Brochure (CP)
Memosens Laboratory Portfolio Make it easy and give me values I can trust
English version - 01/2026
Download
Competence Brochure (CP)
Gamme Memosens pour laboratoire Donnez-moi des valeurs fiables en toute simplicité
French version - 10/2023
Download
Competence Brochure (CP)
Memosens Laborportfolio Einfache Messung und verlässliche Werte
German version - 02/2023
Download
Innovation (IN)
Liquiline Mobile CML18および高性能ラボ用センサ 取扱いが容易で信頼性の高い値を提供
Japanese version - 03/2023
Download
Manufacturer Declaration
Product family: Memosens Product root: CPL51E-, CPL53E-, CPL57E-, CPL59E-
Declaration number: HE_01610_02.25
Manufacturer specification: RoHS
Additional information: China-RoHS
English version - 09/2025
Download
EU Declaration
Product family: CeraGel, CeraLiquid, Ceramax, ConduMax H, ConduMax W, InduMax H, InduMax P, Liquiline, Memosens, Messkabel, Orbi Pac, OrbiPore, OrbiSint, OxyMax H, OxyMax W, TopHit Product root: CLS15D-, CLS16D-, CLS21D-, CLS50D-, CLS54D-, CLS82D-,
CML18-, COS21D-, COS22D-, COS51D-, COS81D-, CPF82D-, CPL51E-
,
CPS11D-, CPS12D-, CPS16D-, CPS171D-, CPS31D-, CPS341D-, CPS41D-,
CPS42D-, CPS441D-, CPS471D-, CPS47D-, CPS491D-, CPS71D-,
CPS72D-,
CPS77D-, CPS91D-, CPS92D-, CPS96D-, CPS97D-, CYK10-, CYK20-
Declaration number: EC_00828_02.20
English version - 02/2022
Download
EU Declaration
Product family: Memosens Product root: CPL51E-, CPL53E-, CPL57E-, CPL59E-
Declaration number: EU_01000_01.22
English version - 02/2022
Download
UK Conformity Assessed
Product family: Memosens Product root: CPL51E-, CPL53E-, CPL57E-, CPL59E-
Declaration number: UK_00482_01.22
English version - 02/2022
Download
Components sheet
SF Kit CPSxx protective caps SF Kit CPSxx protective caps
English version - 08/2026
Download

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Order code CPY4-

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Spare parts & accessories
Rugged Memosens pH electrode for lab measurements and spot sampling in harsh environment
Digital pH sensor Memosens CPL59E

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Rugged Memosens pH electrode for lab measurements and spot sampling in harsh environment
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Spare parts and accessories

KCL-Electrolyte solution CPY4

Order code CPY4-

Technical buffer solution CPY20

Order code CPY20-
Spare parts & accessories

Selection of compatible products

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