RFQ
  • Overview
  • Products
  • Catalogs
  • Tech Contents
  • Solution

Pyxis ST-71X Series Industrial pH & ORP Sensors

  • NG # 04344-HW-PYXIS-003

The Pyxis ST-71X Series Industrial pH & ORP Sensors are advanced inline water quality sensors designed for accurate measurement of pH and oxidation-reduction potential (ORP) in industrial and process water applications. Featuring an embedded transmitter with 4–20mA and RS-485 Modbus outputs, these sensors offer reliable, low-maintenance performance even in challenging environments such as wastewater, cooling water, and high-turbidity systems.

Manufactured By :
Pyxis
Ask For Price

Stock

Need Help Ordering?
Call +88 01714243446

Custom Pricing

Get A Quote
Ask For Price
Need Help Ordering?
Call +88 01714243446

Stock

Custom Pricing

Get A Quote

Overview

The Pyxis ST-71X Series Industrial pH & ORP Sensors are engineered to simplify installation, calibration, and ongoing operation in demanding industrial water environments. These sensors integrate a built-in transmitter, enabling direct connection to PLCs, controllers, and distributed control systems without the need for additional pre-amplifiers. They support both 4–20mA analog output and RS-485 Modbus communication, with optional temperature output when using Modbus, enhancing system integration flexibility.

Designed for durability and long-term use, the ST-71X series incorporates a flat pH sensing surface and an oversized platinum ORP electrode, improving resistance to fouling, contamination, and highly turbid water conditions. The enlarged salt bridge and high-capacity junction extend sensor life while minimizing maintenance requirements. Unlike conventional sensors, these units do not require electrolyte refilling or electrode replacement, allowing for a full lifecycle “install-and-use” approach.

These sensors are ideal for applications such as industrial process water, wastewater treatment, cooling systems, reverse osmosis, and surface water monitoring. Their robust construction and flexible installation options, including inline and submersion setups, make them suitable for a wide range of water quality monitoring scenarios.

Specification

  • pH Measurement Range: 0 to 14 pH with ±0.01 pH accuracy (ATC)
  • ORP Measurement Range: ±1,500 mV with ±1.0 mV precision
  • Response Time: 95% within 5 seconds
  • Output Signals: 4–20mA (isolated) and RS-485 Modbus
  • Power Supply: 12–36 V DC, approximately 1 W
  • Operating Temperature: 4°C to 49°C (40°F to 120°F)
  • Storage Temperature: -20°C to 60°C
  • Operating Pressure: Up to 0.7 MPa (100 psi)
  • Connector: IP67 waterproof cable (1.5 m length)
  • Materials: CPVC standard, optional stainless steel
  • Installation: ¾" NPT tee (inline) or submersion adapter option
  • Dimensions: Approx. 172.7 mm length × 36.6 mm diameter
  • Weight: Approx. 170 g
  • Service Life: Typically over 2 years
  • Protection Rating: IP67

Other Pyxis Products

Pyxis HM-900 Fluorometer
Pyxis Industrial Tools & Accessories 04355-HW-PYXIS-014

Pyxis MA-WB Bluetooth Adapter
Pyxis Industrial Tools & Accessories 04360-HW-PYXIS-019

Pyxis ST-772 Series Luminescent Dissolved Oxygen Sensors
Pyxis Industrial Tools & Accessories 04354-HW-PYXIS-013

Pyxis SP-400 Fluorometer
Pyxis Industrial Tools & Accessories 04357-HW-PYXIS-016

Pyxis ST-500 Inline Fluorometer
Pyxis Industrial Tools & Accessories 04351-HW-PYXIS-010

Pyxis RT-200 PRISM High Temperature Inline Refractometer
Pyxis Industrial Tools & Accessories 04353-HW-PYXIS-012

Pyxis CR-Series LPR Corrosion Rate Sensor
Pyxis Industrial Tools & Accessories 04347-HW-PYXIS-006

Pyxis RT-100 PRISM Inline Refractometer
Pyxis Industrial Tools & Accessories 04346-HW-PYXIS-005

Pyxis FS-100 NanoFlow Sample Flow Measurement & Regulation Control Module
Pyxis Industrial Tools & Accessories 04355-HW-PYXIS-014

Pyxis ST-765 Series Oxidizer + pH Sensor
Pyxis Industrial Tools & Accessories 04358-HW-PYXIS-017

Pyxis ST-774 Ultra-Low Luminescent Dissolved Oxygen Sensor & Flow Cell
Pyxis Industrial Tools & Accessories 04359-HW-PYXIS-018

Pyxis SP-710 and SP-710B Water Multimeter
Pyxis Industrial Tools & Accessories 04345-HW-PYXIS-004

Pyxis FS-100 Ultrasonic Micro Flow Meter
Pyxis Industrial Tools & Accessories 04348-HW-PYXIS-007

Pyxis SP-300 Fluorometer
Pyxis Industrial Tools & Accessories 04356-HW-PYXIS-015

Pyxis ST-720 / ST-726 High Range Smart Conductivity Sensors
Pyxis Industrial Tools & Accessories 04349-HW-PYXIS-008

Pyxis ST-73X-SS-T Stainless Steel Removable Inline Turbidity Sensors
Pyxis Industrial Tools & Accessories 04342-HW-PYXIS-001

Pyxis LT-63X Series Self-Wiping & Submersible Turbidity Sensors
Pyxis Industrial Tools & Accessories 04343-HW-PYXIS-002

Pyxis MA-CR 8-Pin Inline Bluetooth Adapter
Pyxis Industrial Tools & Accessories 04361-HW-PYXIS-020

Pyxis SP-910 Multiparameter Water Analyzer
Pyxis Industrial Tools & Accessories 04352-HW-PYXIS-011

Pyxis SP-350P and SP-380P Fluorometers
Pyxis Industrial Tools & Accessories 04350-HW-PYXIS-009

BUYERS WHO LIKED THIS PRODUCT ALSO LIKED

KUKA Articulated robot KR IONTEC
KUKA Industrial Tools & Accessories 00125-HW-KU-022 00125-HW-KU-022

Keystone Pipe Handling Tools Beckets & Bails
KeyStone Industrial Tools & Accessories 00100-HW-KEY-001

Keystone Dual Flapper Check Valves
KeyStone Industrial Tools & Accessories 00100-HW-KEY-002

Type CD Drill Pipe Elevators API Spec 8A/8C For Drill Collar/Casing/Tubing
made in china Industrial Tools & Accessories 00400-HW-PIELV-004

Coriolis flow transmitter CFT34A
Schneider Electric Industrial Tools & Accessories 00400-HW-SCH-022 CFT34A

Model 1100 Turbine Flow Meter
Badger Meter Industrial Tools & Accessories 0716-HW-BLA-001

Model 1200 In-Line Turbine Flow Meter
Badger Meter Industrial Tools & Accessories 0717-HW-BLA-002

FloClean Sanitary Turbine Flow Meter
Badger Meter Industrial Tools & Accessories 0718-HW-BLA-003

QuikSert® In-Line Turbine Flow Meter
Badger Meter Industrial Tools & Accessories 0719-HW-BLA-004

Blancett 900 Series Positive Displacement Flow Meter
Badger Meter Industrial Tools & Accessories 0720-HW-BLA-005

GF Signet 515 Rotor-X Paddle Wheel Flow Sensor
GF Signet Industrial Tools & Accessories 0721-HW-GFS-001

GF Signet 2537 Paddlewheel Flow Meter
GF Signet Industrial Tools & Accessories 0722-HW-GFS-002

Related Searches

CRM & Smart Terminals
Safety & Security
BitTitan
Ens Security
Silver Peak
TELPO

Privacy Preference Center

Your privacy

When you visit any website, it may store or retrieve information on your browser, mostly in the form of cookies. This information might be about you, your preferences or your device and is mostly used to make the site work as you expect it to. The information does not usually directly identify you, but it can give you a more personalized web experience. Because we respect your right to privacy, you can choose not to allow some types of cookies. Click on the different category headings to find out more and change our default settings. However, blocking some types of cookies may impact your experience of the site and the services we are able to offer. You can get more information by going to our Privacy Policy or Statement in the footer of the website.

Strictly necessary cookies
Always active

These cookies are necessary for the website to function and cannot be switched off in our systems. They are usually only set in response to actions made by you which amount to a request for services, such as setting your privacy preferences, logging in or filling in forms. You can set your browser to block or alert you about these cookies, but some parts of the site will not then work. These cookies do not store any personally identifiable information.

Cookies details
Performance cookies

These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. They help us to know which pages are the most and least popular and see how visitors move around the site. Most of these cookies collect and process aggregated (anonymized) information without identifying individuals. If you do not allow these cookies we will not know when you have visited our site, and will not be able to monitor its performance.

Cookies details
Functional cookies

These cookies enable the website to provide enhanced functionality and personalisation. They may be set by us or by third party providers whose services we have added to our pages. If you do not allow these cookies then some or all of these services may not function properly.

Cookies details
Targeting cookies

These cookies may be set through our site by our advertising partners. They may be used by those companies to build a profile of your interests and show you relevant adverts on other sites. They do not store directly personal information, but are based on uniquely identifying your browser and internet device. If you do not allow these cookies, you will experience less targeted advertising.

Cookies details
Cookie List
  • Name
    trwv.vc
  • Host
    ngenit.com
  • Duration
    A few seconds
  • Type
    First Party
  • Category
    Targeting cookies
  • Name
    trwv.vc
  • Host
    ngenit.com
  • Duration
    A few seconds
  • Type
    First Party
  • Category
    Targeting cookies
  • Description
    Marketo - These cookies store the total number of visits each visitor has to the Site, track email recipient behavior to measure campaign effectiveness and personalize Site content based on information known about the visitor.
  • Name
    trwv.vc
  • Host
    ngenit.com
  • Duration
    A few seconds
  • Type
    First Party
  • Category
    Targeting cookies
  • Name
    trwv.vc
  • Host
    ngenit.com
  • Duration
    A few seconds
  • Type
    First Party
  • Category
    Targeting cookies
  • Description
    Marketo - These cookies store the total number of visits each visitor has to the Site, track email recipient behavior to measure campaign effectiveness and personalize Site content based on information known about the visitor.

  • Name
    trwv.vc
  • Host
    ngenit.com
  • Duration
    A few seconds
  • Type
    First Party
  • Category
    Targeting cookies
  • Name
    trwv.vc
  • Host
    ngenit.com
  • Duration
    A few seconds
  • Type
    First Party
  • Category
    Targeting cookies
  • Description
    Marketo - These cookies store the total number of visits each visitor has to the Site, track email recipient behavior to measure campaign effectiveness and personalize Site content based on information known about the visitor.
  • Name
    trwv.vc
  • Host
    ngenit.com
  • Duration
    A few seconds
  • Type
    First Party
  • Category
    Targeting cookies
  • Name
    trwv.vc
  • Host
    ngenit.com
  • Duration
    A few seconds
  • Type
    First Party
  • Category
    Targeting cookies
  • Description
    Marketo - These cookies store the total number of visits each visitor has to the Site, track email recipient behavior to measure campaign effectiveness and personalize Site content based on information known about the visitor.

Powered byOneTrust

1 Product Added

Click to view the product...

All RFQ Product Added In Query!
1. Pyxis ST-772 Series Luminescent Dissolved Oxygen Sensors Qty: 1

Check all added RFQ in one place, hit the button to show all added RFQ.

Submit RFQ