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Fiber Optic Temperature Monitor.


The Rugged Monitoring O701 is designed for reliability to operate in extreme EMI, RFI, Microwave and high voltage environments. The O701 Fiber optic monitor combines reliability and user-friendly configuration software. It is a multi-channel fiber optic temperature monitor with precision measurement for Original Equipment Manufacturers.  

The O701 has a measuring range from -80 °C to +300 °C. The system offers complete immunity to extreme temperature conditions and High Voltages making it an optimal choice for environments where the limitations of conventional temperature sensors/ monitors impact usage in extreme conditions. The system is based on proven GaAs technology and designed for Plug and Play operation. 

  • Power Electronics: Junction Temperature (Tj), IGBT, Diode and MOSFET temperature testing
  • Power Module Thermal Profiling
  • Electric Vehicle: Inverter and Converter Testing and Design Optimization
  • Variable Frequency Drive (VFD): Power Cell temperature monitoring and control
  • Semiconductor: High Voltage / Current Power Supply Testing, High Power Density PCB thermal profiling
  • Medical: Ablation, research and drug testing

  • Suitable for OEM-type applications.
  • Sensors do not require any recalibration
  • No shift over time, high stability and repeatability
  • Robust packaging
  • Robust data logging and analytics
  • Customizable according to customer specific applications
Technical Specifications

Measurement Range

Measurement range (Optional Range extensions)
Number of Channels
Config port
Max No of Channels
Comunication Ports
Analog output module
Scan rate
Operating temp
Storage temp

-80 °C to +300 °C (cryogenic 4 °K range optional)

Down to 4 °K / Up to +300 °C
±1.0 °C (+/- 0.2 °C in relative temperature)
1 - 4 Channels
1 sec interval on USB / Micro SD card
USB (to use with Rugged connect windows software
Expandable to 128 Channels, Daisy chain up to 32 units (with Modbus, Canbus)
RS-485 (RS-232 optional converter) with Modbus , CANbus
24/48 Vdc Option for 12Vdc
MicroSD external memory slot (up to 2 TB)
Fully configurable Four (04) 0-10 V / 4-20 mA module (Optional)
4.72" x 6.34" x 1.89" 120 x 161 x 48 mm
30 Hz (33ms) / channel (Optional: Faster scanning rates available)
-40 to 72 °C
-40 to 85 °C
95% Non Condensing
System Fault relay (5A)

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