Milesight EM300-MCS LoRaWAN® Magnetic Contact Switch, Temperature and Humidity Sensor (EU868)

Milesight EM300-MCS LoRaWAN® Magnetic Contact Switch, Temperature and Humidity Sensor (EU868)

• IP67 Rated and UV Resistance
• Detect Temperature, Humidity and Door/Window Status
• High Sensitivity with 20 to 30 mm Open/Close Sensing Distance
• Customized Alarm Reporting Interval/Times
• Up to 10 Years Battery Life

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€65,00 €76,00
Out of stock

Product Description

The Milesight EM300-MCS is a versatile and robust LoRaWAN® Magnetic Contact Switch designed for monitoring door/window status and environmental conditions. It features an IP67 rated enclosure, ensuring durability against dust and water ingress, making it suitable for use in various indoor and outdoor environments. This device not only detects the opening and closing of doors and windows with high sensitivity (20 to 30 mm sensing distance) but also measures temperature and humidity. It is ideal for security and environmental monitoring, providing real-time alarming for unauthorized entry while also keeping track of ambient conditions.

Product Features

  • IP67 Rated and UV Resistance: Ensures durability and longevity in harsh environmental conditions.
  • Temperature and Humidity Detection: Accurate measurement with a temperature accuracy of ±0.3°C (0°C to 70°C) and humidity accuracy of ±3% (10% to 90% RH).
  • High Sensitivity: 20 to 30 mm open/close sensing distance for precise monitoring of door/window status.
  • Long Battery Life: Powered by a 4000 mAh ER18505 Li-SOCL2 battery, offering a service life of over 5 years, extendable to 10 years.
  • Data Retransmission Support: Guarantees data delivery to the web server, even in case of occasional network downtimes.
  • Historical Data Record Capacity: Stores up to 2,800 sets of data records.
  • LoRaWAN® Technology: Offers wide data transmission range (up to 2 km in urban areas and 15 km in rural areas) and is compatible with standard LoRaWAN® gateways and network servers.
  • NFC Capability: Enables wireless on/off switching and configuration of the device.
  • Physical Characteristics: The device measures 105.6 × 85.3 × 27 mm and has a customizable alarm reporting interval/times feature​.

The EM300-MCS is a comprehensive solution for monitoring and securing premises, providing valuable data for smart building management, security systems, and environmental monitoring.

Product Downloads

Wireless Transmission
Technology LoRaWAN®
Frequency EU868
Tx Power 16dBm (868 MHz)
Sensitivity -137dBm @300bps
Work Mode OTAA/ABP Class A
Lead Cable 1007UL #22AWG 260mm
Type Normally closed
Distance of magnets 20-30mm
Distance of holes 22mm
Temperature Measurement
Range -30°C to + 70°C
Accuracy 0°C to + 70°C (±0.3°C)
-30°C to 0°C (±0.6°C)
Resolution 0.1°C
Humidity Measurement
Range 0% to 100% RH
Accuracy ±3%(10~90%RH)
±5%(Other ranges)
Resolution 0.5% RH
Physical Characteristics
Power Supply ER18505 Li-SOCl2 4000 mAh battery (8000 mAh optional)
Battery Life ≧ 5 years ( for 1 battery)
Ingress Protection IP67
Operating Temperature -30°C to 70°C
Dimensions 88 × 87 × 27 mm
Installation Wall (screws or 3M adhesives)

Shipping Policy

We provide worldwide shipping using reliable tracked
shipping services.

Local Shipments within Cyprus

Shipments in Cyprus are performed usually with ACS Courrier
or AKIS Express. In some cases, we might deliver the products ourselves. A pick-up
option from our locations is also available.

International Shipments

International shipments are performed using Express Airway
Shipping Services. We are currently shipping orders with TNT Express and FedEX.
As soon as your shipment is dispatched you will receive the shipment confirmation
including the shipment tracking number which you can use to track your order
from the shipment provider website.

We dispatch orders within 1-3 workdays after the day of the
order placement. 

General Return Policy

We have a 30-day return policy, which means you have 30 days
after receiving your item to request a return.

To be eligible for a return, your item must be in the same
condition that you received it, unworn or unused, with tags, and in its
original packaging. You’ll also need the receipt or proof of purchase.

To start a return, you can contact us at If
your return is accepted, we’ll send you a return shipping label, as well as
instructions on how and where to send your package. Items sent back to us
without first requesting a return will not be accepted.

For any further information, help and support regarding the
shipping and/or return process you can contact us at:

  • Email:
  • Telephone: +357 22 282828