Considerations in Automating Cleanroom Temperature Monitoring

certification_testing_mainClosely monitoring air temperature is necessary to prevent mold, bacterial agents, and other contaminants in your cleanroom. It is also important for any temperature-sensitive products and equipment. Automating your data equipment can bring accuracy and convenience to your process. What else do you need to know about making such a transformation?

Loggers and Sensors

Data loggers or recorders are used to record and store values like temperature, and include a range of software and hardware. They use sensors and other equipment to electronically track information. Models are available in portable, Ethernet, and wireless units. These loggers will accommodate both single and multi-channel systems.

The sensor you need will depend on your specific application, and the manufacturer will be able to help you determine this. The most common sensors are thermocouples. They’re easy and cost-effective, but they are not highly accurate. Semiconductors are also low-cost with accuracy similar to thermocouples. They provide an output voltage or current proportional to temperature with a limited operating range. The most accurate devices are RTDs ad thermistors, but they have a more limited operating range than thermocouples.

Wired vs Wireless

The layout of your facility will probably be the deciding factor between a wired or wireless system. There are advantages to both. Ethernet-capable devices are more affordable, and they can be mounted wherever you need to measure temperature. They can connect to both RTD and thermocouple sensors and plugged into an Ethernet port.

Wireless systems require a greater investment, but come with more bells and whistles. You’re able to access data in real-time, and with cloud-based services, you can modify system configurations from anywhere there’s an Internet connection.


Most data loggers will let you set the frequency of alarm checks so you can immediately address out-of-specification temperatures. Additionally, some models can continue to log data during power or Internet outages. If you’re connected to a cloud-based system, you can periodically check for irregularities from your smartphone any time. You can also prevent users from inadvertently modifying or deleting data by modifying access levels.

Overall, automating your temperature monitoring connects managers to their critical process and product data for an ideal environment. These systems are likely to be commonplace in the future. The right system and time for implementation will depend on your specific needs.

For questions about cleanroom certification, validation, or construction, contact Gerbig Engineering Company. We are cleanroom specialists with 30 years of experience. Your success is our priority. Call us at 888-628-0056 or email for an expert consultation.

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