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How to Monitoring The Temperature
of Large-scale Cold Storage?

Temperature and humidity data loggers are commonly used in IoT industry, particularly in applications involving environmental monitoring and control. It is obvious that normal data loggers can not meet the requirements of large-scale cold storage facilities. The main reasons are:

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  • Geographical Dispersion: Monitoring temperature and humidity in a centralized manner becomes challenging due to the physical distance between the monitoring equipment and the storage locations.
  • Varied Environmental Conditions:Different storage areas within a large-scale cold storage facility may have varying environmental conditions, such as temperature and humidity levels, due to factors like insulation, airflow, and product density. 
  • Reliability and Redundancy: A failure in the centralized monitoring system or a disruption in the communication network can compromise the entire cold storage monitoring capabilities. 
  • Data Accessibility and Response Time: With a centralized monitoring system, the temperature and humidity data may not be readily accessible to personnel at remote storage locations.

At this time, a split network monitoring system can help you solve the problems.

What is Split Network Monitoring System?

A split network monitoring system is a type of monitoring system that separates the monitoring components into two or more physical locations or devices. The key components are typically divided into the following:

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Remote Sensors/Monitoring Devices

These are the sensors or monitoring devices placed in remote or distributed locations to capture data on temperature and humidity. Thy are responsible for measuring the environmental conditions and transmitting the data to the central monitoring system.

Central Monitoring System

The central monitoring system is the main component of the split network monitoring system, which is responsible for receiving, analyzing, and displaying the data from the remote sensors/monitoring devices. It can be a dedicated hardware device, a software application running on a computer, or a cloud-based platform, will processes the data, generates alerts, and provides a user interface for monitoring and controlling the system.

How Does Split Network Monitoring System Works?

When monitoring temperature and humidity using a split network monitoring system, the process typically works as follows

1. Remote Sensors

The temperature and humidity sensors are installed at the remote locations where the environmental conditions need to be monitored. These sensors continuously measure the temperature and humidity levels and transmit the data to the central monitoring system.

2.Data Transmission

The remote sensors/monitoring devices use various communication methods, such as LoRa, 4G, Wifi, Ethernet and other communication transmission technologies or specialized industrial communication protocols, to send the measured data to the central monitoring system.

3.Central Monitoring System

The central monitoring system receives the data from the remote sensors/monitoring devices and processes it. The system can analyze the temperature and humidity data, generate alerts if the readings exceed predefined thresholds, and display the information in a user-friendly interface. It may also provide historical data storage, trend analysis, and reporting capabilities.

4.Monitoring and Control

Users can access the central monitoring system, either locally or remotely, to view the current temperature and humidity readings, monitor trends, and receive alerts.In some cases, the central monitoring system may also provide the ability to control environmental conditions, such as adjusting HVAC settings or triggering corrective actions based on the sensor data.

Elitech RCW-3000 Split Network Monitoring System


Elitech RCW-3000 split network monitoring system were designed for large-scale cold storage, shade storage, hospitals, fresh supermarkets, etc. Here are the main features:

  • Wireless Communication: The system utilizes LoRa, 4G, WiFi, and Ethernet technologies to enable wireless data transmission, avoiding the need for wired connections. This makes installation easy and flexible.
  • Long Standby Time: The data collectors are equipped with large-capacity lithium batteries that can last over 12 months, depending on the data upload interval.
  • Multi-Connectivity: The gateway supports both 4G and WiFi connectivity, allowing users to choose the appropriate communication method based on the environment.
  • Remote Monitoring and Alerts: The Elitech mobile app allows users to remotely view data, configure device settings, and receive email/SMS alerts when conditions exceed set thresholds.
  • Cloud Platform Integration: The data is stored on the Elitech iCold Cloud platform, providing options for long-term data storage, data export, and user management.
  • Large Measuring Range: A RCW-3000 can connect 100 monitoring devices (RCW-3200), and the effective communication distance between the host and the collector can reach 1000 meters.

The RCW-3000 gateway and RCW-3200 sensors are designed to work together as a comprehensive wireless temperature and humidity monitoring solution, suitable for applications such as cold storage, hospitals, and fresh food facilities. The system's flexibility, long battery life, and remote accessibility make it a versatile choice for environmental monitoring needs.

The split network monitoring system approach offers several advantages, such as increased scalability, improved reliability, and the ability to monitor widely dispersed or remote locations. It is commonly used in applications like industrial facilities, data centers, warehouses, and agricultural operations, where environmental monitoring is critical for efficient and safe operations..