How It Works Shipping Fee Terms of Use

Model MSS-SAI Small Electromagnetic Sensor


  • Cylinder position detection and control
  • Relay and programmable controller control
  • Magnet detection


  • Because use a reed switch method, leakage current is 0 μA.
  • Welding prevention resistor built-in.
  • Cable connection available on the side or on the top.
  • Cable of 1 m and 3 m and 5 m length,are available.
  • Molded type that can be used safely even in places where water may splash.

International Standards

  • Our products do not have overseas safety regulations such as CE mark, UL standard, EN standard etc.
  • Products is compliant to the RoHS directive.

* Please consult about "change of specification" and "request of specification" of the product.

Rating/Performance/Characteristics Graph

Rating / Performance

Detection Surface Front side detection
Detection Sensitivity Detection : 6.5 mT (60 G) or more (At the standard point)
Reset : 1.5 mT (15 G) or less (At the standard point) 
Detection Polarity N pole and S pole
Power Supply Voltage 100 V AC (Operating voltage range : 70 V to 100 V AC)
Leakage Current 0 μ A DC when Off
Power Consumption 7 mA to 20 mA AC
Output residual voltage 4 V AC or less(Load current  20 mA AC and a 1-meter cable)
Welding Prevention
Operation Configuration Normally open (On with magnetic field)
Operation Display Red LED (Lit when On output)
Max Response Frequency 200Hz
Operating Temperature
-10 to 60 °C (-10 to 60 °C during storage)
(Without dew condensation or freezing)
Operating Humidity
95% RH or less (95% RH or less during storage)(Without dew condensation)
Withstand Voltage 1 min at 1000 V AC 50/60 Hz (Between the live part and case)
Insulation Resistance 50 MΩ or more measured with an ohmmeter at 500 V DC 
(Between the live part and case)
Vibration Resistance Durability : 2 hours in each X, Y, Z direction at 10 to 55 Hz and with peak-to-peak amplitude of 1.5 mm (At power off)
Shock Resistance Durability : 10 times at 294 m/s² (approx. 30 G) in each X, Y, Z direction
(At power off)
Protection Rating IP67
Case Material PBT
Cable ø3.1, 2-core round cord of 0.2 mm² (Oil and heat resistant)
Cable Direction Horizontal
Weight Approx. 15 g (1 m in cable length)

Characteristics Graph (Typical Example)


External Dimensions Diagram/Output Circuit and Connections

External Dimensions Diagram


Output Circuit and Connections


Usage Precautions

  1. If the load of the magnetic sensor relay, the inductive load such as a solenoid, please use by using a surge protection circuit and varistor to load.
  2. Because it is a  reed switch type, please use as not to apply excessive shock or stress to those magnetic sensor.
  3. If the load of the magnetic sensor is a large inrush current, such as capacity load, please use so as not to over the maximum load current value.


  1. See Electromagnetic sensor general usage precautions for other precautions.


*After you have put an item in your shopping cart, choose either [Quote] or [Order].
*For customized products or specifications, contact us using "Inquiry."
*Choose the currency from JPY, USD, or EUR.

Model Name Cable length Standard Price Inventory Type Select
16 USD
15 EUR
MSS-SAI-3M 3 m
20 USD
18 EUR
MSS-SAI-5M 5 m
24 USD
22 EUR

STD Shipping is available immediately (on the day of order)

WIP Shipping is available within 1 to 3 weeks

BTO Shipping is available within 10 to 18 weeks

NOTE: The above information shows the typical delivery time. For actual delivery time, please confirm us as it depends on our business days and/or product quantities.

In the case of the quote request and order, please be sure to check the Terms and Conditions.
If you have made the procedure of quote request and order, it assumes that agree to the Terms and Conditions.

Part number index

Product Comparison Table

confirmation of the estimate request content

Electromagnetic sensor

Go to page top