Sensor Technology supplies piezoelectric materials, hydrophones, transducers and custom underwater acoustic assemblies. Its SQ94-04 catalogue entry specifies a 1 Hz–30 kHz working range and 3,000 m operating depth for that model. The separate WhisperLoop development project combines a compact towed hydrophone array with machine learning for uncrewed-vessel acoustic monitoring. Ocean Supercluster identifies a C$6.5 million total project with C$2.5 million from OSC; this is development funding, not evidence of a qualified operational sonar.
Technical detail
Core features
Model-specific hydrophones including SQ94-04 at 1 Hz–30 kHz and 3,000 m
Custom piezoelectric sensing and acoustic assemblies
WhisperLoop compact towed-array and machine-learning development
WhisperLoop collaboration with Turbulent Research, Mostar Labs and Opti9
Hardware
Hydrophone
Piezoelectric
Underwater Acoustics
Sonobuoy
Towed Array
Mine Countermeasures
Dipping Sonar
Use & integration
Recorded applications
Underwater acoustic sensing
Uncrewed-vehicle payloads
Defence-prime system integration
Hull and variable-depth sonar integration
Sonobuoy, towed-array and mine-countermeasure sensing
These describe the reviewed application scope, not confirmed deployments, released requirements or procurement eligibility.
Evidence of maturity
Established acoustic component catalogue alongside a separately funded WhisperLoop development programme. Public evidence does not establish operational acceptance of WhisperLoop.
Commercial availability
Catalogue components and custom assemblies are supplier offerings; select the sensor model and integration requirements. Obtain a current quality certificate: the company-posted BSI document expired in 2018 and cannot establish present certification.
Integration and verification
Readiness
A technology readiness level is not established by the reviewed public sources.
Custom underwater acoustic sensors and systems may help teams working on Sovereign defence capability areas by contributing to detection and situational awareness, autonomous and uncrewed systems, and advanced materials and manufacturing.
This is a reviewed public-source assessment. It is not procurement eligibility, endorsement, customer interest, or classified demand.
Original sources 6 linked records
These records support this capability and its published Mission area and Defence need connections. A source count is not a count of independent confirmations.
Sensor Technology catalogue specifies SQ94-04 at 1 Hz–30 kHz and 3,000 m operating depth, distinct from other hydrophone variants. Piezoelectric elements, hydrophones and transducers are configurable components rather than a complete qualified sonar system. Download-sheet links did not expose a public PDF.
Supports: Capability · technical tags
Sensor Technology catalogue specifies SQ94-04 at 1 Hz–30 kHz and 3,000 m operating depth, distinct from other hydrophone variants. Piezoelectric elements, hydrophones and transducers are configurable components rather than a complete qualified sonar system. Download-sheet links did not expose a public PDF.
Supports: Capability · capability type
Sensor Technology catalogue specifies SQ94-04 at 1 Hz–30 kHz and 3,000 m operating depth, distinct from other hydrophone variants. Piezoelectric elements, hydrophones and transducers are configurable components rather than a complete qualified sonar system. Download-sheet links did not expose a public PDF.
Supports: Capability · technical tags
Sensor Technology catalogue specifies SQ94-04 at 1 Hz–30 kHz and 3,000 m operating depth, distinct from other hydrophone variants. Piezoelectric elements, hydrophones and transducers are configurable components rather than a complete qualified sonar system. Download-sheet links did not expose a public PDF.
Supports: Capability · technical tags
Sensor Technology catalogue specifies SQ94-04 at 1 Hz–30 kHz and 3,000 m operating depth, distinct from other hydrophone variants. Piezoelectric elements, hydrophones and transducers are configurable components rather than a complete qualified sonar system. Download-sheet links did not expose a public PDF.
Supports: Capability · defence applications
Sensor Technology catalogue specifies SQ94-04 at 1 Hz–30 kHz and 3,000 m operating depth, distinct from other hydrophone variants. Piezoelectric elements, hydrophones and transducers are configurable components rather than a complete qualified sonar system. Download-sheet links did not expose a public PDF.
Supports: Capability · technicaldomainslugs
Sensor Technology catalogue specifies SQ94-04 at 1 Hz–30 kHz and 3,000 m operating depth, distinct from other hydrophone variants. Piezoelectric elements, hydrophones and transducers are configurable components rather than a complete qualified sonar system. Download-sheet links did not expose a public PDF.
Supports: Capability · core features
Sensor Technology catalogue specifies SQ94-04 at 1 Hz–30 kHz and 3,000 m operating depth, distinct from other hydrophone variants. Piezoelectric elements, hydrophones and transducers are configurable components rather than a complete qualified sonar system. Download-sheet links did not expose a public PDF.
Supports: Capability · technical tags
Sensor Technology catalogue specifies SQ94-04 at 1 Hz–30 kHz and 3,000 m operating depth, distinct from other hydrophone variants. Piezoelectric elements, hydrophones and transducers are configurable components rather than a complete qualified sonar system. Download-sheet links did not expose a public PDF.
Supports: Capability · technical tags
Sensor Technology catalogue specifies SQ94-04 at 1 Hz–30 kHz and 3,000 m operating depth, distinct from other hydrophone variants. Piezoelectric elements, hydrophones and transducers are configurable components rather than a complete qualified sonar system. Download-sheet links did not expose a public PDF.
Supports: Capability · defence applications
Sensor Technology catalogue specifies SQ94-04 at 1 Hz–30 kHz and 3,000 m operating depth, distinct from other hydrophone variants. Piezoelectric elements, hydrophones and transducers are configurable components rather than a complete qualified sonar system. Download-sheet links did not expose a public PDF.
Supports: Capability · summary
Sensor Technology catalogue specifies SQ94-04 at 1 Hz–30 kHz and 3,000 m operating depth, distinct from other hydrophone variants. Piezoelectric elements, hydrophones and transducers are configurable components rather than a complete qualified sonar system. Download-sheet links did not expose a public PDF.
Supports: Capability · technical tags
Sensor Technology catalogue specifies SQ94-04 at 1 Hz–30 kHz and 3,000 m operating depth, distinct from other hydrophone variants. Piezoelectric elements, hydrophones and transducers are configurable components rather than a complete qualified sonar system. Download-sheet links did not expose a public PDF.
Supports: Capability · core features
Sensor Technology catalogue specifies SQ94-04 at 1 Hz–30 kHz and 3,000 m operating depth, distinct from other hydrophone variants. Piezoelectric elements, hydrophones and transducers are configurable components rather than a complete qualified sonar system. Download-sheet links did not expose a public PDF.
Supports: Capability · technical tags
Sensor Technology catalogue specifies SQ94-04 at 1 Hz–30 kHz and 3,000 m operating depth, distinct from other hydrophone variants. Piezoelectric elements, hydrophones and transducers are configurable components rather than a complete qualified sonar system. Download-sheet links did not expose a public PDF.
Supports: Capability · defence applications
Sensor Technology catalogue specifies SQ94-04 at 1 Hz–30 kHz and 3,000 m operating depth, distinct from other hydrophone variants. Piezoelectric elements, hydrophones and transducers are configurable components rather than a complete qualified sonar system. Download-sheet links did not expose a public PDF.
Supports: Capability · commercial availability
Sensor Technology catalogue specifies SQ94-04 at 1 Hz–30 kHz and 3,000 m operating depth, distinct from other hydrophone variants. Piezoelectric elements, hydrophones and transducers are configurable components rather than a complete qualified sonar system. Download-sheet links did not expose a public PDF.
Supports: Capability · technology readiness level
Sensor Technology catalogue specifies SQ94-04 at 1 Hz–30 kHz and 3,000 m operating depth, distinct from other hydrophone variants. Piezoelectric elements, hydrophones and transducers are configurable components rather than a complete qualified sonar system. Download-sheet links did not expose a public PDF.
Supports: Capability · defence applications
Sensor Technology catalogue specifies SQ94-04 at 1 Hz–30 kHz and 3,000 m operating depth, distinct from other hydrophone variants. Piezoelectric elements, hydrophones and transducers are configurable components rather than a complete qualified sonar system. Download-sheet links did not expose a public PDF.
Supports: Capability · name
Sensor Technology catalogue specifies SQ94-04 at 1 Hz–30 kHz and 3,000 m operating depth, distinct from other hydrophone variants. Piezoelectric elements, hydrophones and transducers are configurable components rather than a complete qualified sonar system. Download-sheet links did not expose a public PDF.
Supports: Capability · technical tags
Sensor Technology catalogue specifies SQ94-04 at 1 Hz–30 kHz and 3,000 m operating depth, distinct from other hydrophone variants. Piezoelectric elements, hydrophones and transducers are configurable components rather than a complete qualified sonar system. Download-sheet links did not expose a public PDF.
Supports: Capability · defence applications
Sensor Technology catalogue specifies SQ94-04 at 1 Hz–30 kHz and 3,000 m operating depth, distinct from other hydrophone variants. Piezoelectric elements, hydrophones and transducers are configurable components rather than a complete qualified sonar system. Download-sheet links did not expose a public PDF.
Supports: Mission area · Underwater ISR
Sensor Technology catalogue specifies SQ94-04 at 1 Hz–30 kHz and 3,000 m operating depth, distinct from other hydrophone variants. Piezoelectric elements, hydrophones and transducers are configurable components rather than a complete qualified sonar system. Download-sheet links did not expose a public PDF.
Supports: Mission area · Underwater ISR
Sensor Technology catalogue specifies SQ94-04 at 1 Hz–30 kHz and 3,000 m operating depth, distinct from other hydrophone variants. Piezoelectric elements, hydrophones and transducers are configurable components rather than a complete qualified sonar system. Download-sheet links did not expose a public PDF.
Supports: Mission area · Underwater ISR
Sensor Technology catalogue specifies SQ94-04 at 1 Hz–30 kHz and 3,000 m operating depth, distinct from other hydrophone variants. Piezoelectric elements, hydrophones and transducers are configurable components rather than a complete qualified sonar system. Download-sheet links did not expose a public PDF.
Supports: Mission area · Underwater ISR
Sensor Technology catalogue specifies SQ94-04 at 1 Hz–30 kHz and 3,000 m operating depth, distinct from other hydrophone variants. Piezoelectric elements, hydrophones and transducers are configurable components rather than a complete qualified sonar system. Download-sheet links did not expose a public PDF.
Sensor Technology describes Canadian-built piezoelectric acoustic sensors and systems for high-value aquatic environments, including defence-prime and uncrewed-vehicle applications.
Supports: Mission area · Underwater ISR
Source location: Reviewed source summary
Sensor Technology describes Canadian-built piezoelectric acoustic sensors and systems for high-value aquatic environments, including defence-prime and uncrewed-vehicle applications.
Supports: Defence need · Sovereign defence capability areas
Visually inspected company-posted BSI certificate FM 74429 covers piezoelectric materials, transducers and hydrophones but expires June 25 2018. It cannot establish current ISO 9001 certification. This does not show that present certification is absent; a current certificate remains unverified.
Ocean Supercluster December 4 2025 announcement identifies the C$6.5 million WhisperLoop development project led by Sensor Technology with Turbulent Research, Mostar Labs and Opti9. OSC contributes C$2.5 million; the balance is partner funding. The goal combines machine learning with a compact towed hydrophone array for autonomous vessels.
Public sources cited · Facts and assessments kept separate · Human review
Sensor Technology describes Canadian-built piezoelectric acoustic sensors and systems for high-value aquatic environments, including defence-prime and uncrewed-vehicle applications.
Supports: Capability · core features
Ocean Supercluster December 4 2025 announcement identifies the C$6.5 million WhisperLoop development project led by Sensor Technology with Turbulent Research, Mostar Labs and Opti9. OSC contributes C$2.5 million; the balance is partner funding. The goal combines machine learning with a compact towed hydrophone array for autonomous vessels.
Supports: Capability · summary
Ocean Supercluster December 4 2025 announcement identifies the C$6.5 million WhisperLoop development project led by Sensor Technology with Turbulent Research, Mostar Labs and Opti9. OSC contributes C$2.5 million; the balance is partner funding. The goal combines machine learning with a compact towed hydrophone array for autonomous vessels.
Supports: Capability · maturity
Ocean Supercluster December 4 2025 announcement identifies the C$6.5 million WhisperLoop development project led by Sensor Technology with Turbulent Research, Mostar Labs and Opti9. OSC contributes C$2.5 million; the balance is partner funding. The goal combines machine learning with a compact towed hydrophone array for autonomous vessels.
Supports: Defence need · Sovereign defence capability areas
Reviewer synthesis of the public end state: Canada can build, sustain or control priority aerospace, ammunition, digital, in-service support, sensor, space, specialized manufacturing, training and uncrewed capabilities through domestic strength, trusted partnerships and sovereign access.
Supports: Defence need · Sovereign defence capability areas
Canada needs secure strategic autonomy and reliable access to capabilities that are critical to defending its sovereignty and meeting allied commitments, while reducing exposure to foreign supply-chain and intellectual-property dependencies.
