Reed Sensor application and selection guide
Reed sensors and magnetic switches detect position, level or movement through a magnetically actuated contact; operate/release distance depends on magnet, orientation, sensitivity and installation geometry.
Use this family when a sealed non-contact or magnetically actuated sensing point is required. Final magnet distance, cable length and environmental rating should be confirmed for each installation.

Key selection parameters
- Sensing mode
- Magnetic proximity, level, float or position sensing
- Output
- Normally open/closed or model-specific output
- Housing
- Plastic, metal or molded sensor body depending on series
- Cable / connector
- Lead wire and connector options by model
- Environment
- Confirm temperature, media and sealing requirements by RFQ
Before choosing a model
These notes keep product pages useful for engineers while avoiding overclaims. Final ratings remain model- and application-specific.
Reed sensor application comparison
Choose the sensor style from the target, medium and installation environment, then confirm cable, connector and actuation distance by RFQ.
| Sensor use case | Typical construction | Signal output | Selection focus |
|---|---|---|---|
| Position / proximity | Molded reed sensor with external magnet | NO / NC reed switch output | Actuation distance, magnet type and mounting gap |
| Level / float sensing | Float or level sensor body | Level state switching | Media compatibility, temperature and mounting thread |
| Door / interlock | Compact magnetic switch | Controller / PLC input | Cable length, housing strength and environment |
| Custom OEM sensing | Sensor capsule, lead wire or connector options | Model-specific output | Sealing, connector, cable and production volume |
Representative models in this family
Each model links to its own detail page and datasheet/RFQ path. Use the All Models index for the complete list.
- Sensing mode: Magnetic proximity, level, float or position sensing
- Output: Normally open/closed or model-specific output
- Housing: Plastic, metal or molded sensor body depending on series
- Cable / connector: Lead wire and connector options by model
Reed Sensor selection FAQ
Answers are shown on-page to match the structured FAQ data and help engineers prepare datasheet review or RFQ requests.
How do I choose a Reed Sensor model?
Start from the application requirement, then compare Sensing mode, Output, Housing, Cable / connector, Environment. Open the model detail page and PDF datasheet before confirming the final ordering code.
Where can I find individual datasheets for this product family?
Each representative model card links to its own detail page and PDF datasheet. For production projects, submit an RFQ so voltage, current, mounting and compliance requirements can be confirmed.
What information should be included in an RFQ?
Include working voltage, current, load type, contact or output form, coil or control voltage, mounting style, environment, validation quantity and expected production volume.
Reed sensor and float switch selection details
Define sensing products by housing style, actuation distance, magnet/float geometry, contact behavior, cable/connector, material compatibility and installation direction.


Selection checklist
- Sensing mode: proximity, door, level or flow
- Housing material and mounting style
- Normally-open / normally-closed behavior
- Magnet, gap, float and target geometry
- Cable length, connector and sealing requirement
- Media compatibility and operating temperature
Representative models
Use these models as starting points when comparing voltage, current, contact form, package and application duty.
Model code example: MRS06-A-Cable
- MRS
- Magnetic reed sensor family
- 06
- Mechanical package / housing series
- A/B
- Contact behavior or sensitivity option
- Cable/connector
- Lead length and connector by customer drawing
Reed sensor and float switch selection details
Define sensing products by housing style, actuation distance, magnet/float geometry, contact behavior, cable/connector, material compatibility and installation direction.
Representative models
Use these models as starting points when comparing voltage, current, contact form, package and application duty.
Model code example: MRS06-A-CableMRSMagnetic reed sensor family06Mechanical package / housing seriesA/BContact behavior or sensitivity optionCable/connectorLead length and connector by customer drawing
Reed Sensor English catalog
Review the standardized English product-family catalog, datasheets and RFQ path for this product category.
Download Category Catalog Complete Product Catalog Request Engineering Quote
Original source PDFs are preferred when available. Generated English PDFs are used only when no original source PDF is found; final ratings, drawings and application suitability are confirmed by RFQ.
Reed sensor and float switch selection details
Define sensing products by housing style, actuation distance, magnet/float geometry, contact behavior, cable/connector, material compatibility and installation direction.


Selection checklist
- Sensing mode: proximity, door, level or flow
- Housing material and mounting style
- Normally-open / normally-closed behavior
- Magnet, gap, float and target geometry
- Cable length, connector and sealing requirement
- Media compatibility and operating temperature
Representative models
Use these models as starting points when comparing voltage, current, contact form, package and application duty.
Model code example: MRS06-A-Cable
- MRS
- Magnetic reed sensor family
- 06
- Mechanical package / housing series
- A/B
- Contact behavior or sensitivity option
- Cable/connector
- Lead length and connector by customer drawing
Reed sensor and float switch selection details
Define sensing products by housing style, actuation distance, magnet/float geometry, contact behavior, cable/connector, material compatibility and installation direction.


Selection checklist
- Sensing mode: proximity, door, level or flow
- Housing material and mounting style
- Normally-open / normally-closed behavior
- Magnet, gap, float and target geometry
- Cable length, connector and sealing requirement
- Media compatibility and operating temperature
Representative models
Use these models as starting points when comparing voltage, current, contact form, package and application duty.
Model code example: MRS06-A-Cable
- MRS
- Magnetic reed sensor family
- 06
- Mechanical package / housing series
- A/B
- Contact behavior or sensitivity option
- Cable/connector
- Lead length and connector by customer drawing
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