iButton Probes: Access Control Probes

We have many more Demiurg probes available. Click a link below to see your options, or contact us for information.
Note: We also offer Demiurg access control systems. Click here to learn more.



Demiurg USK 1024

Demiurg USK 1024

  • Registers up to 1,024 iButton keys.
  • Work modes: TAH, monostable, bistable.
  • Anti-vibration protection.
  • Power: 9-30V.

User manual

Price: $40.85 each.   

Demiurg USK 15

Demiurg USK 15

  • Access Control Device is intended for alarm-based theft-prevention systems, access control systems, control of electromagnetic slide stop and many other receivers powered by a current up to 20 A.

User manual

Price: $27.03 each.   

USK 223 Access Control System

Demiurg USK 223 Access Control System

User manual (PDF).

Price: $22.98  

Demiurg RE1 Standard Controller

Demiurg RE1 Standard Controller

  • Dallas iButton DS1990 reader with USB interface.
  • Seen as a standard USB keyboard (HID) by the system so there is no need for additional drivers.
  • For on Windows 7, Windows 8 and Windows 10 operating systems with a QWERTY keyboard setting.
  • Each iButton's code is sent to PC as a text.
  • Product does not include software.

Animated product demonstration

Price: $69 each.   

Important information

Payment Options: We accept Visa, MasterCard, American Express and Discover Card, as well as PayPal and Amazon Pay. To order our products COD, we require a certified check and a $12 fee. Please contact us for details.

Shipping: Shipping on all orders placed on this site for delivery in the United States is a flat $9.45 for U.S. Postal Service Priority Mail 2-Day. If you need another shipping method or expedited shipping, please contact us.

Privacy: We take your privacy seriously. We will never sell or share any of the information you provide to us, and we use secure servers to handle our online purchases.

TimePilot Corporation warranty*: TimePilot offers a lifetime warranty on iButtons and iButton Fobs and a 1-year warranty on iButton Probes. The purchaser pays only the shipping to return the malfunctioning part to us.

Return policy*: If you are dissatisfied for any reason during the first 30 days after you purchase iButtons, iButton Fobs or iButton probes sold on the iButtonSource.com web site, TimePilot Corporation will refund the purchase price if you return them to us, freight prepaid and insured for the value of the product. If you choose this option, we hope that you will take a few minutes to help us understand why. Please be sure to contact us for an RMA (Return Merchandise Authorization) number before returning the product.

*Note: The money-back guarantee and warranty are void if the product is returned in a damaged state for any reason, including damage that occurs because of failure to follow installation instructions.