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Our FBG interrogators make continuous monitoring easy

Get higher accuracy, speed and reliability for less cost.

Product specifications

Our product line of FBG sensor interrogators

Our FBG sensor data acquisition systems or interrogators offer best-in-class compactness, performance and cost-effectiveness

Product specifications

Sentea interrogator
SR-1080
DM-4120
DM-8125
Number of fibers
1 fiber
4 fibers
8 fibers
Max. number of sensors per fiber (1)
8
10 (default) – 16 (optional)
Max. sampling frequency (2)
24 kHz
Wavelength range
1530 - 1570 nm
1525 - 1575 nm
Wavelength sensitivity (3) / Wavelength accuracy (4)
< 0.5 pm / < 10 pm
Data interface
Ethernet (TCP/UDP/MQTT) – Modbus TCP
Software interface
PeakViewer™ visualization app – API for Python
Dimensions / Weight
165 x 135 x 65 mm / 1.2 kg
Operating conditions (non-condensing)
0 to +40 °C
-20 to +60 °C
List price (5) / lead times (6)

Starting at 2,750 EUR / 4 weeks

(1) (Default) Minimum peak spacing of 3nm required in operation, up to 24kHz. (Optional) Minimum peak spacing of 1.6nm required in operation, up to 2kHz | (2) Valid for 1 fiber connected. For n fibers connected, this value has to be divided by 2n | (3) Defined as standard deviation over 10 minutes | (4) Over full temperature range | (5) Sentea general sales conditions apply. | (6) Applies for small quantities, for larger quantities please contact us.

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Our sales engineers would be happy to get you started with a quotation on our interrogators:

  • SR-1080: the entry level 1-channel
  • DM-4120: the mid-range 4-channel
  • DM-8125: the high-density 8-channel
  • DMX-4120: the high-speed system for vibration analyses

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