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SKU EM300-TH-915M Category

EM300-TH-915M Wireless Temperature & Humidity Sensor – Milesight

Milesight’s EM300-TH is a high-precision environmental sensor, offering temperature accuracy up to ±0.3℃ and humidity accuracy up to ±3% RH. Its robust construction and extended battery lifespan make it suitable for a variety of settings, both indoors and outdoors.

Download EM300-TH Datasheet
Download EM300-TH-User Guide

$80.00 ex GST


Precision, Power, and Performance: The Ideal Solution for Environmental Monitoring

The EM300-TH is an advanced, compact environmental monitoring sensor designed for precise temperature and humidity measurement. It utilizes LoRaWAN® technology for efficient data transmission and boasts an impressive battery life of up to 10 years due to its energy-efficient design.

This sensor integrates smoothly with Milesight’s LoRaWAN® gateway and IoT Cloud, enabling remote management and visualization of environmental data. Its user-friendly interface and remote capabilities make it an excellent choice for those needing reliable environmental monitoring, suitable for both indoor and outdoor settings. It is particularly effective in challenging outdoor environments like industrial sites and greenhouses, ensuring optimal conditions to boost productivity and safety.

Enhance Your Monitoring Capabilities with EM300-TH and Its Superior Connectivity

Key Features

  • Utilizes a high-accuracy Sensirion sensor chip.
  • Capable of long-distance transmission up to 10km.
  • Housed in an IP67-rated, UV-resistant, waterproof shell for harsh conditions.
  • Includes a 4000 mAh replaceable battery for over five years of operation.
  • Stores up to 3,000 local historical records and supports data retransmission.
  • Employs Milesight D2D protocol for ultra-low latency and direct device control.
  • Features NFC for straightforward setup.
  • Compliant with standard LoRaWAN® gateways and network servers.
  • Managed efficiently via the Milesight IoT Cloud.


Unmatched Durability for Outdoor Monitoring

The EM300-TH excels in outdoor settings, providing reliable readings between -30°C to 70°C (±0.3°C accuracy) and 0% to 100% RH (±3% RH accuracy). Its durable IP67 casing protects against environmental elements, making it ideal for tough industrial and agricultural applications.

Long-Term Battery Life for Consistent Monitoring

Powered by a default ER18505 4000 mAh Li-SOCL2 battery, the sensor offers over five years of continuous use. It can accommodate an additional battery in its dual holders, potentially doubling its operational lifespan to a decade, allowing for uninterrupted monitoring.

Direct Control with Minimal Latency Using D2D Protocol

The EM300-TH supports the Milesight D2D protocol, providing the benefit of direct control with minimal latency, eliminating the dependency on gateways and enhancing the efficiency of operations.

Additional information

Weight 0.16 kg
Dimensions 13.5 × 10.5 × 6 cm