FieldLab Mobile
Ralston gauge utility app
About
This app allows you to monitor and log pressure and temperature readings from compatible Bluetooth gauges. You can connect multiple devices, set logging intervals, select units, and export your data in CSV format for reports and certifications.
What's New in FieldLab Mobile
2.1.0
October 23, 2026
New - Calibration dates: Gauge Detail now shows each gauge's Last Calibration and Next Calibration dates. Every saved test run also records the Last Calibration date of each reference gauge at the time of the test. That date appears in the PDF report and the CSV export, so a report always stays tied to the calibration it was run with. You set the dates, and whether they're shown, in FieldLab Desktop. - Bluetooth firmware updates: You can now update a gauge's Bluetooth firmware from inside the app, on supported gauges. If an update gets interrupted, a Resume Update banner lets you pick up where it stopped. Improved - Faster, more reliable connecting and reconnecting. A gauge that drops out during a test now reconnects on its own when it's back in range, even with the phone locked. - Fewer pairing prompts and clearer help when a gauge's pairing is out of date. - Many fixes for custom units and Unit Mismatch prompts. - "Damping" is renamed "Display Damping" to make clear it only affects the gauge's screen, not the readings it records. - General speed and stability improvements.
MoreFAQ
What devices are compatible with FieldLab Mobile?
FieldLab Mobile is compatible with iPhones, iPads, and iPods. You will also need Ralston Instruments LC20 or LC30 Bluetooth Gauges to use the app's core functionalities.
How often is FieldLab Mobile updated?
The app was last updated on November 16, 2024, indicating regular maintenance and potential feature additions. The latest version is 1.7.4.
What is the age rating for FieldLab Mobile?
FieldLab Mobile has an age rating of 4+, making it suitable for a wide range of users.
Can I use FieldLab Mobile offline?
While you need Bluetooth connectivity to connect to your gauges, the app allows you to log data for extended periods and export it later, suggesting some offline functionality for data collection.
What kind of data can FieldLab Mobile export?
FieldLab Mobile allows you to export your saved pressure and temperature readings in raw CSV format, which is ideal for creating test reports and certifications.
Does FieldLab Mobile have ads?
No, FieldLab Mobile does not contain advertisements. It is completely free to download and use.
How does FieldLab Mobile compare to traditional chart recorders?
FieldLab Mobile replaces bulky chart recorders by allowing you to run data logging tests for hours or days directly on your mobile device, eliminating the need to lug around equipment and scan paper charts.
What is the user sentiment for FieldLab Mobile?
Based on the available rating, users have a very positive sentiment towards FieldLab Mobile, with it currently holding a 5.0-star rating from 2 reviews.
