Traceo hardware

Connected temperature sensors for fridges and cold rooms

Traceo uses EN 12830, IP67, and LoRaWAN sensors in fridges, freezers, refrigerated displays, and cold rooms. This page covers their installation, connectivity, and specifications.

Front view of the Milesight EM320-TH temperature sensor. LoRaWAN logo
EN 12830IP67LoRaWAN10+ years battery lifeOffline memoryMagnetic mounting

Context

A power outage can interrupt refrigeration.

On June 24, 2026, France 2 and franceinfo reported a major power outage near Quimper. Traceo signals deviations according to its configuration; the team remains responsible for checks and response.

"Nearly 100,000 homes without power…"
France 2 / franceinfo, June 24, 2026
01

One sensor per cold area

Each sensor is installed in the cold area to monitor, using magnetic or standard mounting. Readings pass through a LoRaWAN gateway before reaching Traceo, where they are associated with the relevant appliance. The gateway, connectivity, and app/web access are included in the temperature pack.

02

Drift is visible right away

When a temperature leaves its configured range, Traceo shows which unit is affected. The team checks the situation and decides how to respond.

03

Useful during risk periods

Alerts are especially useful in summer, when refrigeration equipment is working hardest, and during the holidays, when stocks are higher.

Specifications

  • Measurement range -30 °C to +60 °C
  • Typical accuracy ±0.2 °C from 0 °C to 60 °C; ±0.3 °C from -30 °C to 0 °C
  • Resolution 0.1 °C
  • Transmission LoRaWAN
  • LoRaWAN range Up to 2 km in urban areas and 15 km in rural areas, depending on radio environment
  • Protection IP67
  • Enclosure PC + ABS
  • Installation Magnetic or standard mounting
  • Configuration NFC setup
  • Battery life Can exceed 10 years depending on measurement interval, temperature, and network
  • Memory Up to 3,000 offline readings
  • Compliance EN 12830

Milesight manufacturer data. Radio performance, battery life, and alert timing vary with configuration, building conditions, the LoRaWAN gateway, and the measurement interval.