Data Loggers & Accessories

Temperature and humidity are the most common, but loggers also record CO2 and air quality, water level and water temperature, pressure, light, motion and door opening, energy use (current, voltage, kWh), and signals from other sensors such as 4-20 mA and pulse outputs. Use By Measurement in the menu to go straight to the right range.

Loggers with built-in sensors suit rooms, cabinets, warehouses and transport. Choose a logger with an external probe or sensor cable when the reading has to be taken somewhere the logger can't go, such as inside a fridge, in a liquid, on a pipe or in soil.

USB: the lowest cost. You collect the logger and download it to a PC. Bluetooth: download and check readings from a phone or tablet nearby. Wi-Fi / gateway: readings go to the cloud automatically so you can view them anywhere and receive email or text alarms. Cellular: remote monitoring where there's no Wi-Fi, such as outdoor sites, vehicles and plant rooms.

A single logger is ideal for one location or a few measurements. If you need several sensors at one site, such as a weather station or an energy survey, a multi-channel station or a wireless sensor network is usually simpler and better value. See Stations & Systems.

Most loggers use free software or a free app, for example HOBOconnect, HOBOware or InTempConnect. Cloud platforms add remote viewing, alarms and reports, and some need an annual data plan. Each product page lists the software it uses.

If you report to a regulator, auditor or customer, choose a logger with a calibration certificate (available with most of our loggers) and plan to re-calibrate yearly. For pharmaceutical work, look for software that supports 21 CFR Part 11 audit trails.

We're the exclusive UK and Ireland distributor for Onset HOBO and InTemp, and we also supply Fourtec, Dickson, Grant Squirrel and Hanwell, so we can recommend the right logger rather than just one brand. We've supplied industry, research and the public sector since 1980, and we support what we sell.

With years of experience supporting temperature-sensitive industries, Tempcon Instrumentation Ltd has helped businesses across pharmaceuticals, healthcare, laboratories, food storage, logistics, and manufacturing stay compliant, protected, and audit-ready.

Whether you require a simple temperature data logger or a fully integrated monitoring and alarm system, our extensive range of solutions is designed to support environments where accuracy, compliance, and reliability matter most.

From wireless monitoring systems and calibrated data loggers to real-time alerts and cloud-based reporting, we are committed to helping you find the right solution for your operational requirements.

Please feel free to use our live chat or contact our team if you would like guidance on selecting the best monitoring system for your application.

Whether you just need a simple USB data logger, or a remote monitoring and data logging system - Tempcon can help you. And we don't just supply a wide range of data loggers; as product experts – we also support them.

Tempcon are the exclusive distributor for HOBO and InTemp data loggers in the UK and Ireland. These research-grade loggers are made in the USA and are known for their long-term performance, accuracy and build quality.

There are so many data logger options that it can at first be bewildering. This simple guide will give you a good basic knowledge to help you make an informed choice.

A data logger is an electronic device, often with external probes or sensors and are most commonly battery-operated. All data loggers, whether they are USB data loggers or wireless, comprise a recording system, which is connected to one or more sensors. The sensor or sensors may be housed inside the data logger’s case, or they may be attached to the logger’s sensor ports via a cable. The recording system samples the sensor at intervals and stores the resulting data.

Data loggers are valuable tools for anyone who wants to continuously monitor conditions without having to be on site.

Because of the long battery life characteristic of many portable data loggers, they can be deployed for long periods of time, meaning less time spent traveling to and from the logger to download data. For remotely-placed loggers, or in situations where many loggers are used, that can be a huge savings in time and money.

Ease of use
It can take as little as 15 minutes from opening the box to deployment of a data logger; for USB data loggers, simply connect the logger to a computer, use the data logger’s software to configure the sampling frequency and start/stop times, and you’re good to go.

Reliability
Once configured and deployed, you can rely on a professional-quality battery-powered data logger to gather the information you need - no issues from human errors, bad weather, poor handwriting, or data entry errors will affect your data collection. And whether indoors or out, data loggers are rugged instruments designed to withstand a wide range of
environmental conditions, with various models built to withstand: salt water, refrigeration, or strong winds.

Time-stamped data
Collection of data is at the core of these devices, and their purpose is to provide objective, time-stamped proof of conditions over time, which can be used for research, to confirm operations, provide a record for regulatory agencies, or supply information to decision-makers.

There are many communication options, but one of the most popular is the wireless data logger. The term ‘wireless’ refers to the device’s bluetooth/radio signal/WiFi/cellular internet connection.

Bluetooth Low Energy (BLE) enabled loggers don’t even require a computer - just a mobile device and app. Downloaded data can be easily analysed, graphed, and formatted for presentation, or exported to other applications.

With non-wireless loggers, data is collected manually from the logger after a chosen period of time has elapsed. The data is downloaded ito a PC via USB cable for analysis.

Many customers choose dataloggers that allow wireless access to the data, so that they don't have to spend time physically checking the logger and downloading data. Plus, they can receive alerts via SMS text message to their phone, or by email. Web-based data logging systems enable remote, around-the-clock internet-based access to data via GSM cellular, Wi-Fi, or Ethernet communications. These systems can be configured with a variety of external plug-in sensors and transmit collected data to a secure web server for accessing the data.

Data loggers that utilise Bluetooth Low Energy (BLE) technology measure and transmit data wirelessly to mobile devices over a 100-foot range.

Many data loggers contain internal sensors that will log commonly measured parameters such as: temperature, humidity, pressure, water level, water temperature, Air Quality/CO2, voltage, current, energy (kWh). In some cases the data logger will have multiple internal sensors that log different parameters simultaneously. The ability to log multiple parameters requires the data logger to have multiple ‘channels’. In this way, a data logger with four channels will enable four parameters to be logged simultaneously.

Data loggers that have one or more external channels can be used in conjunction with external sensors to measure and log a very wide range of parameters. The benefit of this is that you are able to customise a data logging system to suit your exact requirements.

Use the 'Measurements' filter on this page to select the parameters that you wish to monitor.

No matter what you need to measure, understanding your measurement accuracy requirements is essential. For example, if you’re monitoring temperature in an office space, you may only require a temperature measurement accuracy of +/- 2 degrees; while monitoring conditions for research may require far greater accuracy, for example, accuracy in the order of 0.2C is typically required.

Accuracy specifications vary widely among different types of data loggers. When looking at the accuracy specifications for a given data logger, be sure to look for specfications that indicate accuracy over the entire measurement range, not just a single value. The accuracy a data logger can attain at the high or low end of its range might be far dissimilar from the correctness at the mid point of its range. For this purpose, it is significant to find out if the logger’s accuracy description mentions a single point or the complete measurement range.

Whether you require a single low-cost USB data logger or an IoT data logging and alert system - we can assist you. The team at Tempcon are the expert data logger consultants. Call us on +44 (0)1243 558270, or alternatively fill out our contact form.