Reed Relays and
Electronics India Limited
Manufacturer of Reed Switches, Reed Sensors and Reed-based products
Reed Relays and Electronics India Limited Incorporated in 1971

MS-225, M5 Threaded Cylindrical Sensor



10W Contact Rating. Normally Open contact. Three sensitivity bands. Sputtered Ruthenium Contact. Higher Shock Limits. 0.5 mm pitch M5 Threaded Barrel.



Omni-polar. Does not require power for operation. RoHS Compliant. Not ESD Sensitive. Various Cables and Connectors Available. For rugged industrial use.


This threaded brass sensor is built for mounting in threaded holes as small as M5 and switch a 10W load. It is particularly useful in applications where distance adjustments need to be made every now and then. Various activating distances are available depending on the magnet and the AT band used. This sensor can be supplied with non-standard connectors on request. All sensors are tested 100% for Operate AT, Release AT, Static Contact Resistance and Variable Contact Resistance before packing. Being an omni-polar device, this sensor can be actuated with either a north pole or a south pole or both. Choosing the right AT band, magnet strength, and operating axis, will restrict the number of operates and releases to one.

Cylindrical and Rectangular Magnets

Standard magnets-RRE We offer a range of magnets in different sizes and shapes, specially selected to...Continue reading ->

Actuation Distances for MS-225 Cylindrical Sensor

MS-225 actuation-magnet parallel to sensor Operate and release distances for the MS-225 M5 threaded magnet sensor in the three...Continue reading ->


Contact FormA
Contact Rating (max)W/VA10.0
Switching Current (max)A0.5
Carry Current (max)A1.50
DC Switching Voltage (max)VDC180
Breakdown Voltage (min)VDC200
Contact Resistance (max)150
Insulation Resistance (min)Ω109
Capacitance (typ)pF0.2


Operate Time (max)ms0.35
Bounce Time (max)ms0.30
Release Time (max)ms0.15
Resonance Frequency (typ)Hz>2000
Operating Frequency (max)Hz500
Operating Temperature Range°C-40 to +70
Shock Resistance (½Sin wave for 11ms)G50
Vibration Resistance (10-2000 Hz)G20

Ordering Code

MS-225-(Operate Band Code)-(Cable Length in mm)-(Cable Termination Code)

Operate Band Code
Cable Termination CodeTermination Type
SStripped to 5.0 mm
TStripped and Tinned

Example: MS-225-1-500-T denotes MS-225 Threaded Sensor in 10-15 Operate Band (AT), with 500 mm cable length and Tinned cable ends.

Other Special Configurations: Lower Static Contact Resistance, Dynamic Contact Resistance Limit, Special Release Limits.

Usage Notes

Here are some of the recommended usage notes to ensure maximum durability of this product. The complete usage notes are available here.

Ampere Turn Selection

Reed Sensor Manufacturer Cross Reference For any application, it is important to select the correct Ampere Turn (AT) or...Continue reading ->

Effects of Temperature

Thermal sensor Effects of increase and decrease in temperature on reed based products and magnets. Continue...Continue reading ->

Product Handling

Dropping Reed switch Reed Switches, Reed Sensor and Magnet Sensors are sensitive devices that easily develop micro...Continue reading ->

Ferro-magnetic parts

Ferromagnetic parts Using Ferro-magnetic mounting parts or screws within a 100 mm vicinity of a reed switch will...Continue reading ->

Cable Handling

Twisting cables nearer to housing Cables with higher strands should be used so that there is minimal work hardening...Continue reading ->

Reed Contact Protection Circuits

Inductive Load Protection Circuit When a reed switch is to be connected to an inductive load or a...Continue reading ->


Although we can never restrict the use of a reed sensor to a particular field, the following is a list of some of the applications that the MS-216-L Magnet Sensor is known to perform well.

Magnet Sensors for Two Wheeler Side Stand Sensing

Motorcycle Sidestand Magnet Sensors are used in two wheelers to sense whether the side stand has...Continue reading ->

Reed sensor in Surveyor’s Wheels for Measuring Distance

surveyor wheel Surveyor's Wheels use a reed switch mounted on the rim and a ring magnet...Continue reading ->

Sensors for Window Sun-shade Shutter Control

window shutter With reed sensors mounted near the rotating shaft mechanism of these motors, and multi-pole...Continue reading ->

Reed Sensors in Hotel Security Card Readers

hotel card reader In most hotels, the simplest method for a guest to enter a room is...Continue reading ->

Magnet sensors in End position sensing in Cylinders and Pistons

Reed switches in pneumatic linear slide Most pneumatic cylinders, pistons, linear slides and rotary actuators are manufactured with inbuilt magnets...Continue reading ->

Magnet sensors in Bicycle Speedometers

Reed switches in bicycle speedometer A magnet can be attached to one of the spokes in the wheels, and...Continue reading ->

Magnet sensors in Adjustable Chairs

Reed switches in adjustable chairs Chairs and beds with electronic controls for adjusting tilting and height use reed sensors...Continue reading ->

Reed sensors in Power switches for explosive areas

Reed switches in explosive area Reed Switches, being hermetically sealed and unaffected by the atmosphere and surroundings, can be...Continue reading ->

Magnet sensors in End position sensing in hoists and fork lifts

Reed switches in end position sensing in fork lifts Hoists and fork lifts use hydraulics to move cylinders and pistons to life heavy...Continue reading ->

Magnet Sensors in Anemometers

Reed switches in anemometer Spinning cup anemometers are fitted with magnets and as the wind blows, a reed...Continue reading ->

Magnet sensors for Anchor, Rudder, and Hatch position detection

Reed switches in hatch position sensing Just as reed sensors are used in automobiles for end position and intermediary position...Continue reading ->

Magnet sensors in Hydraulic arm position sensing

Reed switches in hydraulic arm end position sensing Bulldozers, earth movers, tractors, fork lifts and garbage compactor trucks use hydraulics to move...Continue reading ->

Magnet sensors for Automobile Cruise Control

Reed switches in speedometers A multi pole ring magnet can be attached to the speedometer actuating shaft, and...Continue reading ->

Reed switches and Reed sensors in Sewing machine pedals

Reed switches in sweing machine pedals Reed Sensors inSewing Machine's controls the speed of switching. These are far superior to...Continue reading ->

Magnet Sensors in Door position sensing for Home Appliances

Reed switches in door position sensing In washing machines and dish washers, the processor needs to know that the door...Continue reading ->

Magnet sensors in Satellite dish position sensing in the DTH industry

satellite dish While tuning satellite dishes to various providers, the motor is turned until a clear...Continue reading ->
MS-225 Threaded Magnet Sensor
MS-225 Cylindrical Magnet Sensors: 10W, omnipolar, M5 threaded complete data sheet and technical specifications.
Brand: RRE
Manufacturer: Reed Relays and Electronics
Model: MS-225
3.8 based on 7 reviews