Probatus vs Qualer
Both keep calibration records, but they were built for different jobs. This page sets out where Qualer is the better choice, where Probatus is, and what to ask before deciding.
Last reviewed November 2026
The short answer
Qualer is the closest to Probatus in who it is for: a cloud platform for calibration and service providers, with work orders, certificates, labels and field service. It also serves asset owners in regulated industries and offers a GAMP 5 validation package for 21 CFR Part 11 use.
Probatus is the smaller, simpler product. It is built around the field sheet itself: as-found and as-left readings entered offline, a decision rule and uncertainty per job, then approval, certificate and invoice.
Side by side
The Probatus column describes the product as it is today. The Qualer column is limited to what Qualer and public software listings say about it. Where we are not sure, it says what to ask.
| Topic | Probatus | Qualer |
|---|---|---|
| Built for | Calibration service companies and field teams that calibrate instruments for customers, and backflow testers. | Calibration and service providers, and organisations managing assets serviced by outside vendors. |
| Where the work is recorded | On a phone or tablet at the instrument. Readings save on the device first and sync when there is a signal. | A cloud application with a field service version for mobile access to work orders. Ask what works with no connection. |
| Customers | Each instrument belongs to a customer. Customers sign in to a portal for their instruments, certificates and invoices, and can request service. | Providers and their customers share a platform, with a portal for service documentation. |
| Automated calibration | Readings are typed in, or imported from a file or over an API as an optional feature. Probatus does not connect to a calibrator directly and does not drive instruments. | An integration with Fluke MET/CAL procedures is offered. |
| Regulated industries | An opt-in mode adds password-checked electronic signatures. A validation package of templates, test protocols and automated test evidence is supplied for you to execute; it is not a completed validation. | A GAMP 5 validation package is offered to support 21 CFR Part 11 use. |
| Decision rules and uncertainty | Simple, guarded and non-binary decision rules per job, uncertainty budgets per test point, and the reference standards on every certificate. | Ask how uncertainty and the decision rule are recorded and printed. |
| After the calibration | Supervisor approval, signed PDF certificate, work orders, invoices and QuickBooks Online. | Certificates, labels and work orders. Ask about invoicing and accounting links. |
| Licensing | Cloud by default: a subscription per technician who records work in the month, with certificates, instruments and office users unlimited. It can also be run on your own servers, which you then install and update yourself; ask us about terms. | Cloud subscription. Ask Qualer for current pricing. |
| Track record | A new product. | An established platform with a network of providers and asset owners. |
When Qualer is the better choice
- Your customers are pharmaceutical or medical device companies that expect a validated system.
- Your customers already use Qualer to manage their vendors, and want your records in it.
- You run automated procedures in Fluke MET/CAL and want a ready-made integration for the results.
When Probatus is the better choice
- Your technicians calibrate at customer sites, often with no signal, and paper field sheets get typed up later.
- You want tolerances, decision rules and uncertainty worked out on the sheet as the technician types.
- You also test backflow assemblies and want both in one tool.
- You want invoices and QuickBooks Online in the same system as the certificates.
- You would rather pay per technician who did work that month.
Questions to ask either vendor
- Can a technician record a calibration with no connection, and what happens to it when the connection returns?
- What is on the certificate, and can we see one produced from our own data?
- How is a correction to a reading recorded, and can the original still be seen?
- How do our customers get their certificates?
- What does it cost for our number of technicians and office staff, in a busy month and a quiet one?
- How do we get our records out if we leave?
You can test the first three on Probatus without talking to anyone: the free certificate generator and as-found / as-left sheet use the same calculations as the product.
Other comparisons
- Probatus vs GAGEtrak: manufacturers managing their own gages, with gage R&R studies and tool crib tracking.
- Probatus vs IndySoft: in-house and commercial calibration labs that want a configurable system, in the cloud or on their own servers.
- Probatus vs Beamex CMX: process plants calibrating their own instrumentation, especially with Beamex documenting calibrators.
- Probatus vs GageList: manufacturers tracking their own gages in the cloud, with a free plan for a small number of gages.
- Probatus vs Calibration Control: organisations tracking their own equipment on Windows, who prefer a one-time licence.
- Probatus vs Fluke MET/TEAM: calibration labs, often electrical and RF, that automate procedures with Fluke MET/CAL.
Or see all of them on one page.
Qualer is a trademark of its owner. Probatus is not affiliated with or endorsed by Qualer. Product details change, so confirm anything that matters to your decision with the vendor.
Questions
- How is Probatus different from Qualer?
- Both are cloud systems for companies that calibrate for customers. Qualer is the larger platform, with an established validation package for regulated customers and an integration with Fluke MET/CAL. Probatus concentrates on field entry with no signal, decision rules and uncertainty on each job, and invoicing, and it has a backflow testing module. Its validation package is a set of templates and test evidence you execute yourself, and its link to automation software is a generic file and API exchange.
- Can I move my records from Qualer to Probatus?
- Probatus imports instruments and past calibration history from Excel or CSV files, up to 2,000 rows at a time. If you can export your equipment list and calibration records from your current system to a spreadsheet, they can be brought in. There is no direct Qualer importer.
- Does Probatus make a lab ISO/IEC 17025 accredited?
- No software does. Accreditation is granted to a laboratory by an accreditation body. Probatus keeps the records an assessor asks to see: readings, the standards used, uncertainty, the decision rule, who did the work and who approved it.
Keep reading
Calibration management software compared
Calibration software falls into a few kinds, built for different organisations. This page sorts the well-known products by who they are for, with a closer comparison of each against Probatus.
Calibration software for small labs
A lab with a handful of technicians does not need an enterprise quality system. It needs readings captured once, certificates that are right the first time and records it can find at an audit.
Preparing calibration records for an ISO/IEC 17025 audit
An assessor picks a certificate and follows it backwards: to the readings, the reference standard, the person who did the work and the procedure they used. This guide covers what that trail has to contain and how to check yours before they do.
See it on one of your own jobs
Add a few instruments, calibrate one on your phone and download the certificate. No card is needed, and your current system can keep running alongside.