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PrimaLuceLab SESTO SENSO 2 Robotic Focusing Motor


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  • Highly Accurate, Advanced, Vibration-free, Robotic Focusing Motor for Your Telescope!
  • Control Electronically, Manually, or Both!
  • USB-C Port to Connect to Any Standard Computer or EAGLE USB Port.
  • Integrated WiFi Connection with Virtual HandPad.
  • Precision of 0.7 microns.
  • Compact and Lightweight Design.

Product Details


    The PrimaLuceLab SESTO SENSO 2 Robotic Focusing Motorprovides accurate, vibration-free, focus for your telescope! With different control options and optimized mechanical functions like dimmable LED lights for better light management, amplify your astronomy focusing capabilities and save time capturing stunning views of the night sky!

    Features of the PrimaLuceLab SESTO SENSO 2


    Multiple Control Options

    It connects to the USB port of your EAGLE or Windows computer and gives you electronic focus control while maintaining an ability to be manually controlled if needed. You can also connect any smartphone or tablet to have wireless control through its integrated WiFi!

    Single Compact Design

    The housing is made up of a single block of aluminum, CNC machined, with an aesthetic red anodized finish. The upper part of the SESTO SENSO 2 is made up of rigid plastic in order to allow the WiFi antenna to operate for easier remote control.

    Dimmable LED Lights

    LED lights on the SESTO SENSO 2 body are dimmable and can even be turned off completely. Reduce light emission during astrophotography or visual use for better light management.

    ARCO Port 

    The SESTO SENSO 2 now comes with ARCO port to easily connect the ARCO camera rotator without the need for additional data or power cables. With ARCO, you can remotely control the rotation angle of your camera in order to achieve the perfect framing of the object you want to record.

    Self Centering Clamp (SCC) Function

    SESTO SENSO 2 can be installed on most focusers without the need for external brackets. Designed to fit to a 25 mm diameter shaft. Even if SESTO SENSO 2 is installed, you can use the manual knobs of your focuser. 


  • specifications

    Free ShippingYes
  • included items

    • SESTO SENSO 2.
    • 12v DC cigarette-style plug power cable.
    • USB-C to standard USB cable.
    • Hex keys for assembly.
    • 5 color-keyed bushings for different focuser types.
    • Quick installation guide.

Product Reviews

Customer Reviews
4.0 Based on 6 Reviews
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Filter Reviews:
    David L.
    United States United States
    Great products and service...just slow

    Service and support are excellent! Product selection is great. Product availability and delivery - and communication about status - not so good.

    Raymond G.
    United States United States
    Works perfectly

    I now have 2 of the Sesto v2 and 1 of the older Sesto v1 focus motors and they have worked perfectly for me for up to 3 years. I like the capability to adjust focus speeds, ramp rates, and holding power for various size camera weights. The newer version has improved easier focus shaft attachment and has a very solid mechanical connection

    Dana G.
    United States United States
    Sento Senso 2

    Horrible product. No real instructions on how to put the unit together. One of the grub screws came loose and stripped the motor. I had to disassemble the unit to get it off the scope’s focuser. The assembly videos were a joke because they did not go into any detail as to the assembly process. The person from PrimaLuceLab needs to take the assembly process seriously and not treat it as a comedy skit (if you go to their web-site you’ll understand what I’m talking about). A complete waste of about $400.00.

    David C.
    United States United States
    Sesto Sensto 2

    Awesome focuser. So far it is working great with my refractor and GSO Linear Focuser. I have been getting great repeatably and good V-Curves for focus. Dave Collings - Blue Ridge Observatory

    Bennie F.
    United States United States

    I've used the focuser several times now, and am impressed. An electronic focuser an item that I'd been on the fence about for a while. I knew I needed one to make my process repeatable, but frankly didn't like the mounting options that were available in the market. When I found the Sesto Senso 2, I hastened to verify fitment on my ES AR152. Notes on that here: It was easy to install, and works well with my APT control software. There is an ASCOM focuser driver available on the mfr site which works well. The focuser is easily configurable. I have run into no problems. I do have some slippage because I have a Crayford style focuser that slips when my scope is near zenith. The focuser has a feature to actively hold position. This small difficulty is manageable for the time being simply by zeroing focus position before each night of imaging, and ensuring that the focuser tension knob is tight. In the long term, this has pointed out to me the benefit of a rack and pinion style focuser. In short... buy it, I think you'll like it.

    Peter S.
    United States United States
    Works great.. Few minor issues..

    Measure your focuser before ordering. Waited 3 months for the senso sesto 2 only to find I needed an adapter to fit my focuser. It only comes with a cigarette lighter power cable and the barrel connector on the other end does not fit standard 5.5mm x 2.1mm plug. I had an issue at first where having the focuser connected to the computer would randomly disconnect all other usb components. I found the solution to be connecting sesto senso 2 only after all other components were connected. Everything works great now.