Much of our sales are for custom work that is individually quoted to the project needs.  However, we do offer a number of standard components which are listed here along with pricing.  Many of our standard components are stocked and available for immediate purchase.  If you need assistance in product selection or purchase, simply contact us and we will gladly answer any questions you have and help you with the purchase.

Dealer inquires are welcome.  Please contact us for details.

Telescope control systems and components

ProductSKUPriceLead time
Note: The PrimeTCS and accessories pricing below applies for 0.5 meter (20") and smaller telescopes.  For larger telescope please contact us for pricing.
PrimeTCS-i Telescope Controller and Maestro software.PTCS-I-01$3,775In stock
PrimeTCS-i with NEMA 23 motors 0.41Nm (58 oz-in) cont., integral servo drivers, cables & power supply.PTCS-I-23A-01$5,9502 weeks
PrimeTCS-i with NEMA 23 motors 0.88Nm (124 oz-in) cont., integral servo drivers, cables & power supply.PTCS-I-23B-01$6,1502 weeks
PrimeTCS-i with NEMA 34 motors 1.95Nm (277 oz-in) cont., integral servo drivers, cables & power supply.PTCS-I-34A-01$7,2502 weeks
PrimeTCS-i with NEMA 34 motors 3.38Nm (478 oz-in) cont., integral servo drivers, cables & power supply.PTCS-I-34B-01$7,2502 weeks
High Resolution Absolute Encoder Module.HRAM-01$585In stock
High Resolution Incremental Encoder Module2.HREM2-01$190In stock
PrimeTCS/SkyWalker HPJ joystick handpaddle.HPJ-01$395In stock
PrimeTCS/SkyWalker HP1 handpaddle.HP1-03$350Out of stock
Smart SkyWalker accessory.  Converts old SkyWalker to new functionality.  Price includes USPS Priority shipping in the USA.  Contact us for shipping costs elsewhere.S-BOX-01$525

In stock
High Resolution Encoder Module for S-Box.HREM-01$550In stock
Automation Module for S-Box.AUTOMOD-01$550In stock
Major Maestro software and ATCS firmware upgrade.

Upgrades system to 3.00.000 functionality. Details here: Readme3_00_000.html.

We will email the license code (during USA - Eastern time office hours).

Download from the link to the right and then install/run the software. Functionality is limited until a valid license is entered.

Any ATCS controllers that are used as spares, on one telescope system, will not require extra license expenditure. Contact us if this is the case.

This upgrade fee is only charged between major versions (e.g., to


Email (for license)...
S-Box serial number...

Download now!

PrimeTCS drive-unit -to- drive-unit default cable length is 1' (0.3m).  Lengths available up to 25' (7.6m).

 Cables up to 55' (17m) available upon request.  Prices above are for 10' (3m) cables.

Dome control systems and components

Contact us for information and pricing.

Accessory controllers

Contact us for information and pricing.

Custom installations, retrofits and restorations

Contact us to discuss custom projects, retrofits and restorations.  Each project has its own unique needs.  We work closely with our customers to make sure these needs are met.