Milesight EM300-TH-868 LoRaWAN Temperature & Humidity Sensor (EU868)

Milesight EM300-TH-868 LoRaWAN Temperature & Humidity Sensor (EU868)


:In stock

Product Features

  • Embedded with Sensirion high-precision sensor chip
  • Ultra-wide-distance transmission up to line of sight of 10km
  • IP67 UV-resistant and waterproof enclosure for harsh environment applications
  • Built-in 4000 mAh replaceable battery and works for 5 years without replacement
  • Equipped with NFC for easily configuration
  • Compliant with standard LoRaWAN® gateways and network servers
  • Quick and easy management with Milesight IoT Cloud solution


EM300-TH is a compact environment monitoring sensor for measurement of temperature and humidity and transmitting data using LoRaWAN® technology. With this low power consumption technology, EM300-TH can work up to 5 years with 4000 mAh battery. Combining with Milesight LoRaWAN® gateway and Milesight IoT Cloud solution, users can manage all sensor data remotely and visually.

EM300-TH is widely used for both indoor and outdoor applications such as offices, hospitals, factories, greenhouses, etc.

EM300-TH is a LoRaWAN sensor that can utilize coverage provided by the Helium Network.


Wireless Transmission
Technology LoRaWAN®
Frequency EU868/IN865/RU864
Tx Power 16dBm
Sensitivity -147dBm @300bps
Mode OTAA/ABP Class A
Temperature Range -30°C to + 70°C
Accuracy 0..70°C (+/-0.3°C), -30..0°C (+/-0.6°C)
Resolution 0.1°C
Humidity Range 0% to 100% RH
Accuracy 10..90% RH (+/-3%)
Resolution 0.5%

Operation Power On & Off NFC, power button (Internal)
Configuration Mobile APP(via NFC) or PC software(via USB Type-C)
Physical Characteristics
Power Supply 4000mAh ER18505 Li-SOCL2 battery
Battery Life* >5 years (10 min interval, SF10)
Operating Temperature -30°C to +70°C
Relative Humidity 0..100% (non-condensing)
Ingress Protection IP67
Dimensions 88.5 x 85.3 x 27 mm
Installation Wall Mounting

*Tested under laboratory conditions and for guideline purposes only.



Shipping Policy

We provide worldwide shipping using only tracked shipping services. Currently all our international shipments are performed by TNT Express and FedEx. Local shipments to Greece are performed either directly from us or using local shipping couriers (i.e. ELTA Courier).

We ship products within 1-3 days after the order is placed. You will be notified by email when your order is dispatched and you will receive the relevant shipment tracking number which you can use to track your shipment.

Shipment Tracking

You can use the following links to track your order using the provided tracking number in the case of international orders.
  • Orders shipped with TNT Express: TNT Tracking
  • Orders shipped with FedEx: FedEX Tracking
  • 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: +30 210 421 2380