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Milesight EM300-MCS LoRaWAN Outdoor Magnetic Contact Switch Sensor

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Milesight EM300-MCS LoRaWAN Outdoor Magnetic Contact Switch Sensor


The EM300-MCS magnetic contact switch can be mounted to any door or window to detect an opening or closing event. It adds physical security monitoring to your location by alarming for intrusion or unauthorised entry to your monitored conditions.

Out of stock

SKU: IOT-UR-00024 Category:



  • Security alarm for door or window opening
  • Measures temperature between -40°C to 70°C
  • Measures humidity between 0% and 100% RH
  • IP67 water and dustproof
  • Compatible with industry-standard LoRaWAN® gateways (range of up to 15km in rural areas and 2km in urban)
  • 5-10 years of battery life. Comes with 1 x easily replaceable 4000 mAh Li-SOCL2 Battery. Use 2 for 10 years of battery life.
  • Easy configuration through NFC from your mobile phone or PC
  • Remote monitoring through Milesight IoT Cloud (Android & iOS)


LoRaWAN® Frequency AU915/AS923
  Tx Power 17dBm (470) / 16dBm (868) / 20dBm (915)
  Sensitivity -147dBm @300bps
  Mode OTAA/ABP Class A
Sensing Lead Cable 1007UL #22AWG 260mm
  Type Normally closed
  Distance of magnets 20-30mm
  Distance of holes 22mm
Temperature Measuring Range -30°C to +70°C
  Accuracy 0~70°C: ±0.3°C
-30~O°C: ±0.6°C
  Resolution 0.1°C
Humidity Measuring Range 0%~100% RH
  Accuracy ±3%(10~90%RH)
±5%(Other ranges)
  Resolution 0.10%
Physical Characteristics Power Supply 18505 Li-SOCL12 4000mA ( 8000mA optional)
  Battery Life ≧ 5 years ( for 1 battery)
  Operating Temperature -40°C to 70°C
  Ingress Protection IP67
  Dimension 88 × 87 × 27 mm
  Mounting Wall (screws or 3M adhesives)


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