Milesight EM300 Temperature & Humidity Sensor


The EM300-TH offers a compact temperature and humidity sensor, ideal for a wide range of applications.

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Taken from Milesight‘s EM300 series of environmental monitoring sensors, the EM300-TH offers a compact temperature and humidity sensor. Ideal for a wide range of applications, this sensor has an IP67 rating making it suitable for both indoor and outdoor installations.

With an ultra low power consumption, the Milesight EM300-TH has a standard battery life of up to 5 years. Users also have the option to order a special partcode with dual battery holder to increase battery life to up to 10 years.

Some example use cases for this LoRaWAN® temperature and humidity sensor include:

  • Smart Homes
  • Smart Buildings & Offices
  • Warehouses
  • Greenhouses
  • Cold Chain Management
  • Restaurants
  • Supermarkets

Utilising LoRaWAN® technology, the EM300-TH transmits recorded data via a connected LoRaWAN® Gateway and LoRaWAN® network. Users can then view the data through the Milesight IoT Cloud or through your chosen third party platform.


  • Embedded with Sensirion high-precision sensor chip
  • IP67 UV-resistant and waterproof enclosure for harsh environment applications
  • Equipped with NFC for easy configuration

We can supply third-party online wireless sensor monitoring and notification system to view data and set alerts via SMS text and email.

Ask us about our zero-touch provisioning service, this sensor can be supplied pre-configured and ready to go.



Power Supply 1 x 4000 mAh ER18505 Li-SOCL2 battery (extendable to 2 batteries)

Physical Characteristics:

Dimensions 88.5 x 85.3 x 27 mm mm
Operating Temperature -30°C to 70°C
Relative Humidity 0% to 100% (non-condensing)
Protection Rating IP67

Key documents & information

Discounted Trade Pricing: Contact us for trade pricing, to place an order or to discuss your IoT projects.

All of our products are available to customers throughout Europe. For more information on shipping costs, currency conversions and lead times, please contact our technical sales team.

Our team are happy to advise customers on the best portable LoRaWAN® temperature & humidity sensors for their specific applications on an individual project basis.

Our experts are on hand to help you every step of the way
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Additional information

Dimensions 88.5 × 85.3 × 27 mm



Environmental Protection

IP67 Rated

Measurements Taken


Power Source




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