ECHO
Lawful use only. This product is supplied for lawful security, protective, investigative, and authorised monitoring use. You are responsible for ensuring that purchase, possession, deployment, recording, tracking, and monitoring comply with all applicable laws in your jurisdiction.
Datasheet.
Acoustic
SPEC · 01Outputs
SPEC · 02Power & Form
SPEC · 03Where it operates.
Adjacent room monitoring
Capture conversations in the next room without entering it. No drilling, no installation, no detection.
Multi-level surveillance
Listen through floors and ceilings as well as walls. The ECHO works on any solid barrier.
Forensic investigation
Investigative work in legal, security, and intelligence contexts where covert audio capture is mandated.
BOUGHT IT ONCE. SUPPORTED FOREVER.
Every purchase includes product guidance from people who know the equipment, from setup questions through practical troubleshooting.
Explore the catalog.
Questions answered.
What is the Sentiras ECHO contact microphone?
+
The Sentiras ECHO is a stereo contact-audio system that captures structure-borne vibration through rigid surfaces. It is designed for lawful professional listening tasks where no direct room access is available. Dual probes and integrated amplification support practical field use.
Does ECHO require drilling or structural modification?
+
The Sentiras ECHO is designed for non-destructive coupling to suitable surfaces. In typical use, no drilling or permanent installation is required. Surface quality and coupling technique still influence intelligibility.
What are ECHO's operational limits through walls or floors?
+
The Sentiras ECHO performs best on rigid, well-coupled materials that transmit vibration efficiently. Soft insulation, decoupled construction, or high ambient vibration can reduce clarity. It can improve access but cannot guarantee intelligible speech in every structure.
How does ECHO compare with airborne microphones?
+
The Sentiras ECHO captures vibration conducted through material rather than free-air sound at distance. This can be useful where direct line-of-hearing is blocked. Airborne microphones may perform better in open acoustic environments with direct access.
Who should consider buying the Sentiras ECHO?
+
The Sentiras ECHO is generally suited to authorized investigators, technical-surveillance professionals, and institutional security teams. It is not intended for casual or unauthorized private use. Buyer organizations should define legal process and evidence controls in advance.
What lawful-use requirements apply to contact audio systems?
+
The Sentiras ECHO must be used only where monitoring is lawful and explicitly authorized. Users should verify consent, warrant, or statutory basis before any operation. Sentiras does not permit unlawful interception or privacy abuse.