Retractable Housings
Continuous processes require retractable sensor holders that allow easy insertion and removal of the sensor. Hamilton offers a variety of housings with multiple materials, process connections, insertion lengths, and retraction methods.

RetractoFit
The RetractoFit and Retractofit Bio are manually retractable armature designed industrial applications with process pressures up to 6 bar.

Retractex B
A manual / pneumatic retractable armature for sanitary applications in biotechnology, food and beverage, and pharmaceutical applications.

Retractex C
For applications that require flange or NPT process connections. Options for plastic and stainless as well as manual and pneumatic retraction.

Retractex BC
The Retractex BC offers stainless and plastic wetted options for downstream pharma and chemical applications with G 1¼" (Ingold) mounting.

Retractex C LT
LT equals "Long Travel". This housing allows for extended insertion depth into the process. Ideal for applications with long nozzles or tee fittings.
Retractex Housing Family
Learn about the core features of the Retractex family of sensor housings, as well as maintenance and service of the product.
Resources
Hamilton's knowledge base provides a range of explanatory articles, frequently asked questions, and document downloads.
-
Brochure - BioPharma
Innovative solutions for process analytics in biotechnological and pharmaceutical industries. -
Brochure - Brewery
Learn about our control and analytical solutions that are essential to the brewing process. -
Manual - MasterFit / RetractoMaster Sensor Holder
Manual for MasterFit & RetractoMaster
-
What is the "OP" designation at the end of a FlexiFit part number?
"OP" is short for O-ring Position.
-
pH and ORP Sensor Installation Tips
This brief article describes some common considerations with sensor installation and removal, as well as best practices for mounting. -
Understanding Surface Finish
This article explores the topic of surface finish on wetted components for Hamilton sensors, housings, and other products. -
Retractex - Pneumatic Retraction and Cleaning
Trying to understand how Hamilton Retractex housings can be automated? This short video shows retraction and cleaning.

We're Ready to Help
Hamilton's sales, customer service, and technical support staff are available for questions and additional information about all products and services.
Contact Us