MiRelay

Reed Sensor

Browse MiRelay relay, contactor, and sensor series. For pricing, samples, or cross-reference support, send your specifications.

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Product family overview

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.

Fluid level detectionDoor / position sensingIndustrial equipment interlockVehicle and machinery monitoring
Reed Sensor and Magnetic Switch principle illustration
1Magnet / float / target
2Reed sensor capsule
3Signal cable / connector
4PLC / controller input
Main parameters

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
Engineering selection notes

Before choosing a model

These notes keep product pages useful for engineers while avoiding overclaims. Final ratings remain model- and application-specific.

Pull-in and drop-out are differentActuation distance depends on magnet strength, approach direction, sensor sensitivity, housing, nearby metal and installation geometry. Allow for hysteresis between operate and release points.
The whole assembly sets the environment ratingThe reed capsule may be sealed, but IP rating, cable seal, housing material, potting and connector selection determine fluid, temperature and outdoor suitability.
Check load protectionPassive reed sensors draw no steady-state power, but switching voltage/current/wattage limits still apply. Inductive and capacitive loads may need suppression or interface circuitry.
Series comparison

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 caseTypical constructionSignal outputSelection focus
Position / proximityMolded reed sensor with external magnetNO / NC reed switch outputActuation distance, magnet type and mounting gap
Level / float sensingFloat or level sensor bodyLevel state switchingMedia compatibility, temperature and mounting thread
Door / interlockCompact magnetic switchController / PLC inputCable length, housing strength and environment
Custom OEM sensingSensor capsule, lead wire or connector optionsModel-specific outputSealing, connector, cable and production volume
Model display

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.

MS06-1A112W820pcs MS06-1A112W Reed Sensor Proximity Switch include delivery cost
  • 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

Details · Datasheet

View complete model index

FAQ

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.

Engineering selection guide

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.

Reed sensor and float switch selection details product reference image
Representative product image; exact package and marking vary by model.
Reed sensor and float switch selection details dimension envelope illustration
Dimension envelope illustration; use the final drawing before PCB/tooling release.

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

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
Engineering selection guide
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 product image; exact package and marking vary by model.
Dimension envelope illustration; use the final drawing before PCB/tooling release.
Selection checklistSensing mode: proximity, door, level or flowHousing material and mounting styleNormally-open / normally-closed behaviorMagnet, gap, float and target geometryCable length, connector and sealing requirementMedia compatibility and operating temperature
Representative models

MRS01MRS02MRS04MRS06MRS09MRS12MRS19MLS01MLS02

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

English engineering resources

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.

Engineering selection guide

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.

Reed sensor and float switch selection details product reference image
Representative product image; exact package and marking vary by model.
Reed sensor and float switch selection details dimension envelope illustration
Dimension envelope illustration; use the final drawing before PCB/tooling release.

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

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
Engineering selection guide

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.

Reed sensor and float switch selection details product reference image
Representative product image; exact package and marking vary by model.
Reed sensor and float switch selection details dimension envelope illustration
Dimension envelope illustration; use the final drawing before PCB/tooling release.

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

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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