Expert sensor manufacturing - Made in Germany

Scalable sensor production thanks to our manufacturing site in Hartha/Germany

We are proud to claim that all components of our water analysis sensors are manufactured at our German production site in Hartha. We employ professionally trained technical glassblowers who manufacture innovative products with unparalleled precision, designed at our headquarters in Meerbusch near Düsseldorf, Germany. Our state-of-the-art Hartha manufacturing site, which was massively expanded in 2018 and 2021, enables us to serve individual, on-demand customer requests and manufacture sensors for disinfection, pH, and redox measurement in high volumes.

Kuntze-Membranglaeser

Kuntze pH glasses

AH / High alkali high temperature glass

Measuring range pH 0.. 14. Very small alkaline error. Suitable for temperatures up to 135 °C (275 °F), depending on reference electrolyte

LT / Low resistance glass

Fast sensor response time due to minimized resistance. Measuring range pH 0..12 at temperatures ranging from -5 ° to +60 °C (23 ° to 140 °F)

SF / Fluoride-resistant glass

Tolerates up to 500 mg/l of fluoride over a measuring range of pH 1.. 11. Maximum temperature 60 °C (140 °F)

Junctions

Zircon junction

The Allrounder – Low electrolyte leakage with maintenance friendly gel-electrolyte. For low conductivity water with refillable electrolyte, or for special applications in process control with protruding junction (can be ground down or covered).

Platinum junction or glass cut

For ultrapure water with very low conductivity – Twisted platinum thread for high electrolyte leakage, or ground glass joint for adjustable leakage. Alternatively with 3 Zirkon junctions for fixed leakage.

Teflon junction or no junction at all

Robust and dirt resistant – Teflon junction with large surface area. For heavily contaminated water, open hole junction in combination with hydrolysis-resistant solid electrolyte.

Connections

S8 plug

Two-poles S8 plug with rotatable, colored PG 13.5 thread.

Variopin plug

Electrodes with integrated temperature sensor (Pt100 or Pt1000) have a variopin plug with PG13.5 thread (rotatable).

Fixed cable

Alternatively, our electrodes can also be delivered with fixed cable, e.g. with BNC, DIN plug or free cable ends.

Overview of our pH sensors

Zirkon® pH Universal

Durable, low-maintenance, accurate: Zirkon® pH Universal electrodes are used in a variety of applications, such as wastewater treatment, for monitoring process water in industrial plants, and for drinking water applications. They enable reliable water quality measurement in many temperature and pressure environments. The pH electrode is easy to use and service in many different measuring environments

Applications
Drinking Water
Process Water
Waste Water Treatment

Zirkon® pH Pool

Sensors specially designed for pool water measurement: The Zirkon® pH Pool sensors provide reliable and accurate results especially in swimming pools at an excellent price to performance ratio. A low resistance pH membrane glass ensures rapid measurement results. The TEPOX electrolyte Gel is further stabilized by a salt supply (potassium chloride), making it more durable than conventional sensors.

Applications
Pool & Spa

Zirkon® pH Process

Highly reliable in process and wastewater treatment: Zirkon® pH Process sensors are used wherever major water contamination can occur. They consist of a high alkaline, high temperature glass electrode. Depending on the application, the diaphragm is available in platinum, PTFE or as a hole diaphragm. The use of either TEPOX electrolyte or solid electrolyte guarantees low maintenance.

Applications
Process Water
Waste Water Treatment

Zirkon® pH Process HT

The professional solution for high-temperature applications: Zirkon® pH Process HT sensors are temperature stable up to 135 °C and can be used for sterilization applications. They are composed of a high temperature glass electrode. The diaphragm is made of heat- and corrosion-resistant PTFE polymer and is designed to be highly dirt-repellent. The use of solid electrolyte guarantees low maintenance and allows the use in high temperature environments.

Applications
Process Water
High Temperature
Sterilization

Zirkon® pH Process Refill

Even more durable thanks to refillable electrolyte: The Zirkon® pH Process Refill sensors, which can be used as all-rounders in a wide variety of measuring environments, provide a hose connection allowing the reference electrode to be refilled. As a result, the refillable silver/silver chloride (Ag/AgCl) is extremely durable and cost effective. They are composed of a high alkaline, high temperature glass electrode shaped as a robust glass ball. Depending on the application, the diaphragm is available in Zirkon or platinum.

Applications
Drinking Water
Process Water
Waste Water Treatment

Zirkon® pH Fluoride

Developed for application in fluoride-containing water: Zirkon® pH Fluoride sensors have a special glass that withstands a fluoride concentration of 500 mg/l at pH 1. The sensors are used primarily in fluoride-containing environments in the semiconductor industry. Zirkon® pH Fluoride sensors are available with a hose connection for refilling the reference electrode. Alternatively, a version without hose connection is available with low-maintenance TEPOX electrolyte. 

Applications
Fluoride Containing Media

Zirkon® pH Pure

For the most accurate measurement results in fully demineralized water: Zirkon® pH Pure sensors are developed for use in low-ion environments. The composition of the highest-quality materials, such as the high alkaline, high-temperature glass, is key. The innovative glass cut diaphragm ensures a high exchange rate of electrolyte and stable measurements. Alternatively, it is also available with three Zirkon diaphragms, which guarantee reliable measurement results with reduced electrolyte exchange. The reference electrode is equipped with a hose connection and can be refilled.

Applications
Ultra Pure Water

Zirkon® pH Coating

For precise pH measurement in the coating industry: Zirkon® pH Coating sensors are used wherever the pH level has to be measured in electrocoating. These purpose-built electrodes are available with an external Zirkon diaphragm (15 mm protrusion), which can be protected by an attachable dialysis membrane. The reference electrode is equipped with a hose connection and can be refilled. Alternatively, the sensor is available with an open diaphragm in combination with solid electrolyte.

Applications
Fluoride Containing Media
Laboratory

Zirkon® pH Wide Body

Highly robust in demanding chemical environments: Zirkon® pH Wide Body sensors are typically used in flotation processes, leaching, neutralization, and wastewater control. The durable Ryton® housing made of PPS protects against aggressive chemicals. A Teflon ring diaphragm is integrated to account for demanding industrial applications, e.g. in the field of process or waste water. Zirkon® pH Wide Body sensors can be installed quickly and easily, e.g. in pipelines, due to a ¾” NPT thread and are qualified for direct immersion measurements due to optionally available pre-molded sensor cables.
Applications
Industrial Water
Food & Beverage
Drinking Water
Waste Water Treatment
Process Water

Matching products for pH measurement

Krypton® pR Flow

Single-channel water monitoring system for measuring pH, redox potential and temperature

The Krypton® pR Flow provides reliable measurement results for pH and redox potential while also detecting water temperature. The single-channel water monitoring system consists of a measuring device, sensors, flow fitting, software, and cables. In the standard version, the Krypton® pR Flow is equipped with inputs for level and temperature measurement. A digital input and an alarm relay are also included. The built-in flow fitting is pressure-resistant up to 6 bar (at 20 °C) and salt-resistant. All measuring parameters and the measuring range can be selected directly via the system’s user interface.

The Krypton® pR Flow can also be expanded with two additional analog outputs, concentration or volume-based control functions, as well as a Modbus RTU unit and a data logger. Access the measuring system at any time, from anywhere, by connecting to Kuntze Cloud Connect® service. Software updates and add-on modules can also be activated at any time after purchase.

Applications

Drinking Water

Process Water

Waste Water Treatment

Neon® pR

Single-channel water monitoring system

The Neon® pR serves as a measuring and control unit for determining pH value, redox potential, and temperature reliably. In the standard version, the Neon® pR is equipped with inputs and outputs for level and temperature measurement. A digital input and an alarm relay are also provided. All measuring parameters and the measuring range can be selected directly via the system’s user interface.

Neon® pR can also be expanded with two additional analog outputs, concentration or volume-based control functions, as well as a Modbus RTU unit and a data logger. Full connectivity with an existing measurement infrastructure can be established via the Kuntze Cloud Connect® service. Software updates and add-on modules can also be activated at any time after purchase.

Applications

Drinking Water

Process Water

Waste Water Treatment

Kuntze Cloud Connect®: Smart, remote water quality analysis

Anytime. Anywhere. On any device.

Connect your Kuntze products via our Cloud Connect® service and discover the possibilities of modern, remote water quality analysis. With our Cloud Connect® dashboard, keep an eye on all you data – in real time and on all devices. In-depth insights into current water quality make it easier to identify patterns and allow you to react faster to critical changes. This increases the efficiency and productivity of your measurement and monitoring activities while reducing maintenance costs.

The advantages of Kuntze Cloud Connect®:

  • Sensor and device locations are visualized in the Cloud Connect® dashboard
  • Centralized access to current measurement data, regardless of time, location, or device
  • “DPD2CC” mobil app: user-friendly, native application to store reference measurements, such as DPD, in the cloud
  • Data-driven real-time analysis increases quality and speed for customers around the world