FS42PI Portable BraggMETER: Compact Optical Interrogator with Embedded Software

It is the most effective way of supporting the installation of Fiber Bragg Grating (FBG) sensors in the field or for short measurement tasks in laboratory applications.

The FS42PI Portable BraggMETER can run on batteries or be plugged to an external power source. It is supplied with an easily removable bag for protection and transport. This is a unique and unparalleled solution that allows accurate FBG measurements in the field without the need for an external power supply or PC. It is also easy to carry.

Its dedicated embedded software and touchscreen interface provide an easy and effective way to control the unit without any further devices. It is also possible to control the unit remotely and stream data in real time via the Ethernet port using SCPI commands.

    Enhanced Features - Consistent Quality: What's New?

    • Smart Peak Detection (SPD)
    • Improved measurement stability and resolution (resolution <0.5pm; stability 1pm)
    • Increased battery life (2x the autonomy ensuring 5 h of operation with a single battery charge)
    • Reduced weight (total weight of around 6 kg corresponding to, making for a 20% reduction)
    • Increased temperature operating range (0 ºC [32 ºF] to 50 ºC [122 ºF] meaning a 40% wider temperature range)
    • More user-friendly software, the BraggMONITOR PI
    • Removable connector panel for cleaning and maintenance
    • Carrying bag with zipper for easier handling
    • Windows10 IoT operating system
    • Remote operation via SCPI commands

    More features

    • 100 nm wavelength measurement range
    • 1 S/s acquisition rate
    • 4 optical connectors with parallel acquisition
    • Local data logging


    • Built-in PC with software and touch screentouchscreen interface
    • Rugged carrying case for easy transportation

    Optimized for field installation and commissioning of sensing networks


    • BraggMONITOR PI with full data logging capability
    • Easy operation for both experts and beginners

    Renewed data saving, managing, and exporting; optical spectrum analysis and sensor configuration made easy


    • Up to 6 h autonomy
    • Changeable batteries 
    • Optimized design

    Enhanced power management for longer periods of operation in the field

    HBMshop See prices, availability and get an instant quote.
    Get a quote now!

    Ask your HBK Sales Engineer

    Please send me


    Ask your HBK Sales Engineer

    Please send me


    Green check mark Individual offer

    Green check mark Technical advice

    Green check mark Fast response