Skip to main content

Autoflo Technology

Pyxis ST-765SS-Br Bromine + pH Sensor – Sensor Only (Stainless Steel)

Stainless steel bromine + pH sensor, 0-5ppm, sensor only with no flow reservoir. Dual 4-20mA + RS-485, 8-pin connector.

Pyxis Lab
Electrochemical Sensor
Disinfection Monitoring Line

Pyxis ST-765SS-Br Bromine + pH Sensor – Sensor Only (Stainless Steel)

Model:
ST-765SS-Br
Brand:
Pyxis Lab

The Pyxis ST-765SS-Br is a stainless steel, membrane-less multi-parameter sensor that measures bromine, pH, and temperature in a single probe using Pyxis Lab's bare-gold electrochemical detection technology. It is suited to bromine-based disinfection programmes in cooling towers, pools, and spas, and ships sensor-only without a flow reservoir kit. Dual isolated 4-20mA outputs plus RS-485 Modbus support direct integration with a PLC, SCADA, or third-party controller.

Long electrode life — replaceable, front-loading reference electrode assembly rated for up to 2 years of service
Built for bromine disinfection — tracks bromine and pH together in cooling tower, pool, and spa programmes
Long electrode life — replaceable, front-loading reference electrode assembly rated for up to 2 years of service

Description

The Pyxis ST-765SS-Br is a stainless steel, membrane-less multi-parameter sensor that measures bromine, pH, and temperature from a single probe, built on Pyxis Lab’s bare-gold electrochemical detection technology. It ships sensor-only, without a flow reservoir kit, for installation into an existing housing.

Bromine is measured over a 0-5ppm range, making this variant well suited to bromine-based disinfection programmes in cooling towers, pools, and spas. The reference electrode assembly is replaceable and front-loading, reducing startup polarisation time and giving a typical service life of up to 2 years.

Dual isolated 4-20mA outputs plus RS-485 Modbus, via an 8-pin connector, support direct integration with a PLC, SCADA, or third-party controller.

Why Use This

Bromine disinfection control

Tracks bromine alongside pH in one probe, supporting disinfection programmes in cooling towers, pools, and spas.

Reduced maintenance

The replaceable, front-loading reference electrode typically lasts up to 2 years and cuts startup polarisation time.

Flexible controller integration

Dual isolated 4-20mA outputs and RS-485 Modbus connect directly to a PLC, SCADA, or third-party controller via an 8-pin connector.

Applications

  • Cooling tower bromine disinfection — tracks bromine and pH together in cooling water programmes
  • Pool and spa water treatment — monitors bromine-based disinfection in recreational water systems
  • Industrial process water treatment — inline sensing for PLC/SCADA-connected control loops

FAQ

What water treatment programmes is this sensor suited for?

It is suited to bromine-based disinfection programmes in cooling towers, pools, and spas.

What is the bromine measurement range?

The sensor measures bromine over a 0-5ppm range, alongside pH and temperature.

Does it include a flow reservoir kit?

No, it ships sensor-only, with no flow reservoir kit included.

What is the expected electrode life?

The replaceable, front-loading reference electrode assembly has a typical service life of up to 2 years.

Download

D25 Product Datasheet
PDF · 1.2 MB
Installation Manual
PDF · 0.8 MB

Resources

How to Size a Chemical Dosing Pump for Water Treatment
Technical Article · 8 min read
Understanding Water-Powered vs Electric Dosing Pumps
Technical Article · 6 min read
Poultry Medication Dosing — Case Study
Case Study · Selangor Poultry Farm
You May Also Need

Related Products

Pyxis ST-765SS-TCL Total Chlorine + pH Sensor – Sensor Only (Stainless Steel)

Stainless steel total chlorine + pH sensor, 0-5ppm, sensor only with no flow reservoir. Dual 4-20mA + RS-485, 8-pin connector.

Pyxis ST-765SS-FCL Free Chlorine + pH Sensor – Sensor Only (Stainless Steel)

Stainless steel free chlorine + pH sensor, 0-5ppm, sensor only with no flow reservoir. Dual 4-20mA + RS-485, 8-pin connector.

Controllers
Pyxis pH / ORP Controller

Compact dual-channel controller for pH and ORP monitoring with direct pulse output to dosing pumps.

Accessories
Injection Quill & Check Valve

PVDF injection quill with integral non-return valve for safe chemical injection into pressurised pipelines.

Animal Line

Other Models in This Line

Pyxis ST-765SS-Br Bromine + pH Sensor – Sensor Only (Stainless Steel)
Explore Range
Stay Informed

Latest Resources

Initiate a Project

Need help with selection or sizing?

Our engineers are ready to evaluate your requirements and recommend the right solution.