PrimaLuceLab SESTO SENSO 2 Robotic Focusing Motor

  • 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.
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  • Regular price $299.00

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PrimaLuceLab SESTO SENSO 2 Robotic Focusing Motor


The PrimaLuceLab SESTO SENSO 2 Robotic Focusing Motor provides 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. 



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  • 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.
Customer Reviews
4.7 Based on 3 Reviews
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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.