#19982- ThirdLynx DirectSync ESX25


In Stock: 3

#19982 - ThirdLynx DirectSync ESX25 Motor

DirectSync ESX25 focus motor with ThirdLynx integrated controller for Explore Scientific 2.5-inch Hex focuser.

ESX25 is designed exclusively for the Explore Scientific 2.5-inch hex focuser and is similar to our original DirectSync ES25 motor with the same Best-In-Class clutch mechanism.  The new DirectSync ESX25 includes an all-new integrated control circuit built into the focus motor end cap.

No external controller is required.  

USB connectivity and fully compatible with all existing FocusLynx software.

  • Explore Scientific telescopes with 2.5-inch Hex focuser.


  • Explore Scientific ED80 FCD100 Triplet Refractor,
  • Explore Scientific ED102 FCD100 Triplet Refractor,
  • Explore Scientific ED127 FCD100 f/7.5 Triplet APO,
  • Explore Scientific FirstLight 102mm Doublet,
  • Explore Scientific FirstLight 127mm Doublet,
  • Explore Scientific FirstLight 152mm Doublet,
  • Explore Scientific FirstLight 203mm Newtonian,
  • Explore Scientific FirstLight 152mm Mak-Cassegrain.
  • Motor Housing Width: 1.9" (48mm)
  • Overall Length: 3.55" (90mm)
  • Weight: 6.0 oz (165 g)
  • Step Resolution: 1.1 micron per step
  • Stepper Motor: Bi-polar NPM 15-ohm with 1:25 gearhead
  • Controller:  Integrated ThirdLynx
  • Connectivity:  USB 2.0 A-B cable (included)
  • Temperature Sensor: Analog Devices ADT7302 embedded
  • Input Power: 12-volts DC, 2.5 x 5.5mm plug
  • Current Draw: Maximum draw approx. 350mA


  • ThirdLynx Motor
  • 3’ USB Cable
  • 15’ USB Cable
  • Allen Wrench
  • Power Supply with cord
  •  #17070 - USB Power Converter cable.



ThirdLynx controllers are fully compatible with FocusLynx dual-focus control hubs making these motors functional with all ASCOM, Alpaca, X2, and INDI software.