
How to Choose an Ultrasonic Detector for Your Maintenance Program
How to choose an ultrasonic detector that matches the maturity of your maintenance program — from first inspection routes to multi-sensor diagnostics across the whole plant. We compare SDT200, SDT270 and SDT340 with LUBExpert.
How to choose
Step 1: Assess your current level
- Do you already have experience with ultrasonic diagnostics?
- How large is your equipment fleet?
- Which tasks are the priority?
Step 2: Set your budget
- Entry-level: SDT200 — to get started
- Mid-range: SDT270 + Checkers — to grow the program
- Advanced: SDT340 + LUBExpert — for a full-scale program
Step 3: Plan for growth
- Start with the SDT200 for fast ROI
- Add Checkers for specialised tasks
- Move to the SDT340 as the program matures
The full SDT ultrasound equipment catalogue and 8 diagnostic application areas are available in the KEG TRK products section.
Quick-selection table
| Situation | Recommendation | Reason |
|---|---|---|
| Just starting out | SDT200 or ULTRAChecker | Simple, low cost |
| Some basic experience | SDT270 | Data logging, spectral analysis |
| Need a specialised tool | SDT270 + Checker | Purpose-built functions |
| Mature program | SDT340 | Multi-sensor platform |
| Lubrication control | LubeChecker or LUBExpert | Dedicated solution |
| Permanent monitoring | Vigilant/Online4US | 24/7 surveillance |
Equipment covered in this article

SDT200 — Entry-Level SDT Ultrasound Detector
Handheld SDT ultrasound detector with up to 100 kHz bandwidth, built-in IR pyrometer and memory for 4,000 measurements.
Conclusion
The right detector depends on what your predictive maintenance program actually needs. You can start with a simple instrument (SDT200) and move to more advanced solutions (SDT270, SDT340) as the program matures.
Key takeaways:
- Start by assessing your needs
- Choose the level that matches them
- Plan the program's growth
- Invest in training your team
Want advice on choosing equipment? Contact us for a detailed recommendation!
Equipment in this article
KEG TRK quotes prices and delivery times to Kazakhstan on request. We will prepare a commercial offer for your application.

SDT200 — Entry-Level SDT Ultrasound Detector
Handheld SDT ultrasound detector with up to 100 kHz bandwidth, built-in IR pyrometer and memory for 4,000 measurements.

SDT270 — SDT Ultrasound Detector and Data Collector
Handheld SDT ultrasound data collector: 2 channels, up to 100 kHz bandwidth, built-in IR thermometer and laser tachometer, ICP accelerometer input, signal recording for…
Also in this article: SDT340 - Advanced Ultrasound Detector
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