The wireless data loggers you buy are one thing, but the data logger software is another. You may be very happy with the data loggers you chose based on their range, battery, durability, and accuracy – but is their associated software up to speed? Does your environmental monitoring platform give you all the features you require to make your job easier and decision-making clearer? Does your software contribute to your peace of mind?
Regardless of your device choice, data logger software can either hinder or empower you to monitor and maintain the environmental parameters you require to preserve your collections. In this post, updated for 2026, we look at the data logger software options collections care professionals use most, whether general-purpose or built for heritage. In alphabetical order, here we go!
Conserv
Conserv is an environmental monitoring platform built specifically for collections care. It combines long-range LoRaWAN wireless sensors with Conserv Cloud, software that runs in any web browser and on iOS and Android apps.
Conserv Cloud includes preservation metrics, real-time SMS and email alerts, unlimited users, integrated pest management (IPM), observations logged against your data, local outdoor weather, dew point, and industry reports such as the AAM General Facility Report.
You don’t need Conserv sensors to use the software. You can import CSV exports from many common data loggers, including HOBO. The Essentials plan is free and includes data logger file imports (up to 1 MB), standard graphs and reports, observations, and IPM. The Pro plan adds larger and batch imports, preservation metrics and statistics, advanced graphs, custom and scheduled reports, API access, and video or phone support. The software is also included in the Complete plan, and also includes SMS and email alerts, at no additional cost. See pricing.
Conserv is based in the United States and the software is available worldwide. Conserv sensors are available in the US, Canada, the UK, Europe, Australia, and New Zealand.
To try it, open a free account; there’s nothing to install.
Gemini Tinytag Explorer
Gemini, a UK company, makes Tinytag data loggers and three tiers of software for them:
- Tinytag Explorer: the core software for configuring loggers, viewing graphs and tables, combining data, and exporting to Excel, CSV, XML, or text.
- Tinytag Explorer Connect: adds automatic collection from radio and LAN loggers, real-time access, and mixed wireless and wired systems.
- Tinytag DI: adds user authentication, audit logs, and access controls for regulated environments.
Gemini offers a remote demo of each on request. Tinytag software is installed on a computer rather than used in a browser.
Hanwell’s EMS and HanLog
Hanwell Pro, now part of Ellab, has long been a common choice for radio monitoring in UK museums and archives, run through its EMS (Environmental Monitoring Software) with plan views, dashboards, alarms, and reporting.
If you use EMS, plan ahead. Technical support for EMS ends on December 31, 2027. The software will keep running after that, but with no further updates or security patches.
HOBO: HOBOconnect, HOBOware, and LI-COR Cloud
Onset, now a LI-COR brand, has three software options, and which one you use depends on your loggers:
- HOBOconnect (free; iOS, Android, and Windows) is for Bluetooth MX loggers such as the MX1101 and MX1104, the models most museums use. You download data over Bluetooth, view graphs, and export CSV, XLSX, or HOBO files.
- HOBOware is desktop software for USB loggers such as the UX100 series, on Windows 10 and 11 and macOS 10.15 to 12. It doesn’t support MX Bluetooth loggers.
- LI-COR Cloud (formerly HOBOlink) is Onset’s cloud platform. With an MX Gateway and an MX Data Plan, MX data uploads automatically, with dashboards, email and text alerts, and an API.
None of the three calculate preservation metrics. Onset partners with IPI, so HOBO data can be imported into eClimateNotebook, or into Conserv Cloud. Onset has distributors in many countries.
If you’re using HOBO loggers today, our comparison of HOBO and Conserv covers what changes when you move to continuous monitoring.
Image Permanence Institute’s eClimateNotebook
eClimateNotebook, from the Image Permanence Institute (IPI) at Rochester Institute of Technology, has long been a standard tool for analyzing collection environments using IPI’s Preservation Metrics®.
IPI relaunched eClimateNotebook on February 16, 2026. The new version has updated analysis tools, streamlined data management, a mobile-friendly design, updated user roles (Admin, Data Manager, Data Analyst), and broader data logger compatibility. It accepts CSV files with date and time, temperature, and RH columns from any logger, with specific support for HOBO MX1101, MX1104, and UX100 loggers through IPI’s partnership with Onset, and it still supports PEM2 files.
eClimateNotebook analyzes data you upload rather than collecting it live, so it doesn’t provide real-time alerts. Subscriptions are based on the number of logged locations. Every tier has the same features. There’s no free tier, but a three-month free trial covers up to three locations.
T&D Graph
T&D Graph is free desktop software for viewing and analyzing data from T&D data loggers, with tools to search, filter, and merge data, add comments, and print graphs. It works with the T&D WebStorage Service, T&D’s cloud, for remote data access.
T&D Graph runs on Windows 10 and 11. T&D publishes a revision history showing regular updates; the latest version at the time of writing is 1.19.1. T&D is a Japanese company with distributors worldwide.
Testo Saveris Cloud
Testo’s 160 series was designed for museums and archives. The Wi-Fi loggers measure temperature, humidity, light, UV, CO₂, and air pressure, with optional decorative covers for display cases.
Testo is moving its cloud software to the new Testo Saveris Cloud platform, which works with Testo 160, 162, and 164 loggers. It sends limit-value alarms by push notification in the Testo Smart App, by email, or optionally by SMS, and it is certified to EN 12830. The previous Testo Cloud had a free Basic license (email alarms) and a paid Advanced license (SMS alarms, up to 10 users). Check current licensing with Testo. Learn more about Testo Saveris Cloud.
Testo is headquartered in Germany, with a US subsidiary and distributors worldwide.
Conclusion
If you’re weighing specific products, our comparison pages go deeper, and our Buyer’s Guide to Environmental Monitoring includes a scoring template for comparing any system side by side.
If you have any questions about environmental monitoring, integrated pest management, or just want to talk about preventative conservation, please reach out to us! Don’t forget to check out our blog or join our community of collections care professionals where you can discuss hot topics, connect with your peers or even take a course to get familiar with the Conserv platform.
