Ultrasound Low Energy
The foundation of Sonitor’s real-time location technology.
Ultrasound Low Energy™ (ULE) delivers the industry’s most accurate, reliable, and cost-effective room- and sub-room-level positioning for healthcare. Purpose-built for clinical environments, ULE avoids the interference, instability, and infrastructure burden common in Wi-Fi-, BLE-, or infrared-only systems. It provides precise, deterministic location certainty that healthcare workflows depend on.
Core Capabilities
- Purpose-built room and sub-room accuracy
- Deterministic signals that do not penetrate walls
- Reliable performance unaffected by light, glass, or reflections
- Lower total cost of ownership versus IR and UWB
- Higher accuracy and certainty than BLE- or Wi-Fi-only systems
- Optimized for patient flow, staff safety, automation, and compliance
- Long battery life enabled by low-energy ultrasonic detection
How It Works
SonitorONE™ ultraBeacons transmit proprietary 40 kHz (ULE40) and 20 kHz (ULE20) acoustic signals that are detected by Sonitor tags, mobile phones, and partner devices.
These confined ultrasonic signals remain room-bounded, enabling precise identification of where a tag is located—even within bays or sub-zones. With high-fidelity processing and hybrid ULE + BLE support, the system delivers unmatched accuracy without interfering with medical equipment or hospital communication systems.
Key technical advantages:
- Built on Sonitor’s award-winning SonitorSENSE™ technology enabled by over 250 patents.
- Confined acoustic signals for room-bounded detection
- Sub-room precision through high-fidelity signal processing
- Hybrid ULE + BLE + GPS + LF for reliability in all conditions.
- Mobile phone support for ULE-based location
- Low-energy design for long tag battery life
- Zero interference with medical equipment
- Hybrid Accuracy: ULE + BLE + GPS
- Up to 88% fewer devices required to achieve bay-level precision as compared to infrared (IR)
Benefits and Differentiators
- Better accuracy than BLE-, Wi-Fi-, or IR-only systems
- More cost-effective and easier to deploy than UWB
- No line-of-sight requirements and unaffected by lighting or reflections
- Fewer devices required to achieve bay-level precision
- Right-sized accuracy for healthcare at a manageable TCO
- Enables the most demanding clinical workflows: duress, automation, patient flow, and compliance
Experience the next generation of hospital location intelligence.
Discover how SonitorONE can power your clinical, operational, and safety workflows.