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Torc SafeStop™ Wireless Emergency Stop System

The SafeStop™ Wireless Emergency Stop System provides an independent, wireless safety link for unmanned system operators.

The SafeStop is capable of remotely pausing or disabling unmanned ground and surface vehicles from a safe location. This ensures that people and expensive equipment are protected from the inherent dangers of unmanned vehicle system operation.


  • Multi-Level Control Provides Pause and Stop Functionality
  • Ability to Pair Multiple Transmitters with a Single Receiver
  • Available in Multiple Frequencies:
    • 340-400 MHz
    • 900 MHz
    • 1.3 GHz
    • 2.4 GHz
  • Independent Encrypted Communication
  • Lightweight and Portable Handheld Design
  • Units Provide Visual and Audible Operator Feedback
  • Long Range Operation & Extended Battery Life


Wireless Performance Wireless Link
Operating Distance with Single Transmitter Up to 6 miles (line of sight) Frequency Band 902-928MHz (other frequencies available)
Update Rate 20 HZ Transmit Power 1W
Total Number of Combined Transmitters 10 Modulation FHSS GFSK
Transmitter Electrical FCC Approved Yes
SS03TX Battery Life Up to 12 hours OEM Transmitter Electrical
SS03TX Input Voltage (charging) 12/24 VDC, ±10% SS03OT Input Voltage (VIN) 10-32 VDC
SS03TX Power Consumption (12 VDC) 15W SS03OT Power Consumption (12 VDC) 2.5W
Receiver Electrical Frequency Options with Ranges
SS03RX Input Voltage (VIN) 10-40 VDC 400MHz 340-400MHz
SS03RX Power Consumption (12 VDC) W (typical); max power dependent on output load 900MHz 902-928MHz
Weight 1.3GHz 1.33-1.54GHz
SafeStop 03TX 555g 2.4GHz 2.400-2.4835GHz
SafeStop 03RX 1052g Vehicle Interface/Output Ratings
SafeStop 03OT 71g Digital Communications TCP/IP over Ethernet (serial optionally available)
SafeStop 03RX Cables 203g Emergency Stop Output Rating 1.5A Continuous (sink or source)
User Interface Emergency Override Output Rating 1.5A Continuous (sink or source)
User Settings Web browser configuration interface Emergency Stop Output Minimum Voltage VIN – 2.4V
Stop Input Standard mushroom-type stop button Emergency Override Output Minimum Voltage VIN – 2.4V
Pause Input uarded toggle switch Environmental
Bypass Mode Momentary push-button sequence Dust/Water Resistance Receiver: IP67; Transmitter: IP64
Visual Indicators Bicolor LEDs for Power, Link, Pause, & Stop Operational Temperature -20°C to 70°C
Audible Alarm Tone emitted for link lost & low battery Operational Humidity 10% to 90%, non-condensing
Operational Shock Rating 15g


safestop emergency stop system safestop emergency stop system