Milesight EM500-PT100 LoRaWAN PT100 Temperature Sensor -200 to +50 °C

The Milesight EM500-PT100 (T050) is a rugged LoRaWAN temperature sensor built for accurate monitoring across -200 to +50 °C. It’s a strong fit for low-temperature applications where wiring is impractical and where you still need trustworthy data for compliance, quality, or safety. The device uses a PT100 platinum probe with a 3-wire connection and delivers 0.1 °C resolution, ideal for stable trend monitoring and alarm-driven operations.

For dependable field performance, it can store up to 1,000 records locally during temporary connectivity issues and retransmit data when the network is available again. You can also configure threshold alarms (too cold/too warm) and change alarms to catch unexpected shifts early—useful in deep-freeze storage, research setups, or regulated environments.

Commissioning is simple via NFC using a phone, with additional configuration options via downlink or the internal USB-C port for configuration/console access. With an IP67-rated enclosure and flexible wall, pole, or DIN-rail mounting, it’s ready for real-world deployments.

Common use cases

Deep-freeze & cold chain: freezers, cold rooms, shock freezing, compliance logging.

Labs & research: cryogenic/low-temp experiments, test rigs, monitoring campaigns.

Pharma & biotech: temperature-sensitive storage with strict limits and alarms.

Industrial environments: low-temp zones, climate chambers, technical rooms.

Logistics & warehousing: alerting and traceability for temperature deviations.