SonaVu or Crysound: Which Acoustic Camera to Choose in 2026

Why you need an acoustic camera

An acoustic camera shows what you usually cannot see: the source of ultrasound is overlaid on the video feed, and the operator immediately sees where a compressed-air leak or an electrical discharge comes from. No need to move a contact sensor across every fitting — just point the camera at the area and read the "heat map" of sound.

Two main applications:

• Leak detection of compressed air and process gases — direct savings on the compressor system.
• Partial discharge detection in high-voltage equipment — corona and surface discharges on insulators, in switchgear, on power lines — before the defect leads to a breakdown.

KEG TRK supplies two acoustic-camera lines through the SDT Ultrasound Solutions network: the flagship SDT SonaVu+ and the more affordable Crysound CRY2600. Let us look at how they differ.

SDT SonaVu+ — the flagship

SonaVu+ is SDT's own development and our primary choice for most tasks.

• 112 high-sensitivity MEMS sensors — precise source localisation.
• Detection range up to 200 metres — best in class. You can inspect high-mounted and hard-to-reach equipment from the ground.
• Built-in PRPD analysis of partial discharges right in the device.
• SDT ecosystem: integration with the UAS3 software, the "8 pillars" methodology, training and service in Russian.
• The SonaVu+ ATEX version — for explosive zones in oil & gas and chemicals.

The long range and SDT support make SonaVu+ the optimal choice when site coverage and a unified ultrasound program matter.

Crysound CRY2600 — the affordable alternative

Crysound is also supplied through SDT, so it is not a "grey" brand but part of the line. The CRY2600 is a practical choice when the budget is limited or the task is narrow.

• 128 MEMS sensors — even more than the SonaVu+.
• Range up to 120 metres — enough for most workshops and substations.
• PRPD maps of partial discharges with phase analysis.
• Focusing function — suppression of reflections and background noise.
• Variants: CRY2620 (leaks), CRY2623 (leaks + discharges), CRY2624 ATEX (explosive zones).

Comparison

Parameter	SDT SonaVu+	Crysound CRY2600
Sensors	112 MEMS	128 MEMS
Range	up to 200 m	up to 120 m
Partial discharge (PRPD)	yes	yes
ATEX version	yes (SonaVu+ ATEX)	yes (CRY2624 ATEX)
Ecosystem and software	UAS3, SDT methodology	basic software
Positioning	flagship	affordable alternative

How to choose

• Large sites, high-mounted equipment, a unified diagnostics program → SonaVu+ (200 m range and the SDT ecosystem).
• Limited budget or one specific task (leak detection / partial discharge at a substation) → Crysound CRY2600.
• Explosive zones → SonaVu+ ATEX or CRY2624 ATEX depending on budget.

For most industrial programs we recommend SonaVu+ — thanks to its range and integration with the rest of the SDT instruments. Crysound is chosen when a task needs to be covered with a smaller investment.

Selection and supply

KEG TRK is an official partner of SDT Ultrasound Solutions in Kazakhstan. We will help compare models for your equipment, arrange a demonstration and select a configuration. Prices for acoustic cameras are available on request.

Contact us: +7 (7172) 64-08-69, info@keg-trk.kz.