LogTag Data Loggers

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Wi-Fi LogTags

Discover LogTag Wi-Fi data loggers

Welcome to the future of temperature monitoring with LogTag WiFi‑enabled data loggers. Designed for reliability and ease of use, our UTRED30‑WiFi and UTREL30‑WiFi models provide real‑time data transmission to the LogTag Online cloud platform, ensuring your critical environments are always monitored. Perfect for fixed installations like refrigerators and freezers, these devices offer robust solutions for industries such as pharmaceuticals, healthcare, and food storage.

Why choose LogTag Wi-Fi loggers?

LogTag Wi‑Fi data loggers connect seamlessly to standard 802.11 b/g/n Wi‑Fi networks, delivering instant data uploads for real-time monitoring. If a network is temporarily unavailable, the devices store data in their internal memory, ensuring no information is lost. With user-friendly interfaces and compatibility with secure WPA/WPA2 networks, LogTag loggers are ideal for maintaining compliance in controlled environments.

UTRED30-WiFi vs UTREL30-WiFi

Both the UTRED30‑WiFi and UTREL30‑WiFi are engineered for fixed environments like fridges and freezers, but they cater to slightly different needs. Below, we highlight their key differences to help you choose the right model.
LogTag UTRED-WiFi

UTRED30-WiFi

The UTRED30-WiFi is a versatile data logger ideal for standard refrigeration environments. It monitors temperatures in refrigerators and freezers, typically ranging from -40°C to +99°C, making it perfect for vaccine storage, food safety, and pharmaceutical applications. With a 30‑day logging capacity, it ensures comprehensive oversight of your fixed installations.

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LogTag UTREL-WiFi

UTREL30-WiFi

The UTREL30-WiFi is specifically designed for ultralow temperature freezers, with a temperature range down to -90°C. This makes it the preferred choice for specialised applications like biobanking, research labs, and storage of sensitive biological materials. Like the UTRED30‑WiFi, it offers 30‑day logging and Wi‑Fi connectivity, but its enhanced sensor is optimised for extreme cold environments.
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Perfect for fixed environments

Both models excel in fixed environments such as refrigerators and freezers, ensuring consistent monitoring with minimal setup. The UTRED30-WiFi is your go-to for standard refrigeration, while the UTREL30-WiFi shines in ultralow temperature freezers, providing peace of mind for critical assets in extreme conditions.

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Latency explained

What is latency?

Latency, when it comes to temperature logging, refers to the delay between a change in temperature and when that change is detected and recorded by the logger. This delay can be due to the sensor’s design, the materials it’s placed in, or the logging interval. While it might sound like a disadvantage, latency can actually serve a useful purpose in certain environments—particularly where short-term temperature spikes are common but not harmful.

For example, in a busy commercial fridge, the temperature may briefly rise every time the door is opened. A logger with high latency won’t immediately react to these short fluctuations, helping to avoid unnecessary alarms or false data indicating a problem when there isn’t one. In these cases, a slight delay in response acts like a filter, focusing attention on real issues—such as prolonged exposure to unsafe temperatures—while ignoring the everyday ups and downs that don’t affect product quality or safety.

Differrnt connections

Connecting your logger

Depending on the type of logger you have, connecting your logger to your PC means either:

  • inserting into the Reader,
  • plugging it into a USB port, or
  • connecting it via a USB cable.
comparing gen1 and gen 2

What's so good about USB?

First Generation LogTags use a separate Reader (sometimes called a dock) for configuration and for downloading recorded data. 

The Second Generation loggers only require a USB port or cable. Apart from saving the cost of the Reader, this makes them much better suited for shipping, because the recipient doesn’t need a LogTag Reader to download a report about the shipment’s journey.

comparing gen1 and gen 2