Technical analysis of the MOCREO ST4 indicates the use of a DS18B20-based waterproof probe connected via a 3.5mm interface. The system employs 433MHz RF for sensor-to-hub communication, providing a transmission range of 131 feet through structural obstacles. This low-frequency signal is less susceptible to attenuation from insulated steel refrigerator walls than standard 2.4GHz Wi-Fi or Bluetooth signals. The transmitter is designed for external mounting, utilizing a flat-ribbon cable to pass through door seals to the internal probe.
Aggregated data lists a battery life of up to 2 years for the transmitter unit. The central gateway requires a 2.4GHz Wi-Fi connection for cloud data logging and CSV export for compliance auditing. While the probe is rated for immersion, the transmitter chassis is designed for humidity resistance but not full submersion. The system supports a maximum of 10 sensor nodes per hub for multi-zone environmental tracking.
Performance metrics for the DS18B20 component confirm a thermal accuracy of ±0.5°C across standard operating ranges.
To mitigate the risk of localized hardware failure at the hub level, these probes should be supplemented with environmental sensors from different protocol families. For users who do not require an external probe and prefer an integrated ambient sensor, the MOCREO WiFi Fridge Thermometer offers a more compact hardware profile. This device is classified within the safety monitors hardware group for critical environment tracking.
