USB PC Watchdog

USB PC Watchdog
USB PC Watchdog USB PC Watchdog USB PC Watchdog
Brand: Berkshire Products, Inc.
Product Code: 1140
Availability: In Stock
Price: $81.95

3 or more $78.85
5 or more $76.15
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This is a small circuit card that mounts inside the PC and monitors a PC for hardware/software lock-ups or computer malfunctions.

USB PC WatchdogTM Timer Description

The USB PC Watchdog provides a solution to reboot PC file servers, telecom, security, kiosk, video surveillance, digital signage and industrial systems that occasionally lock up but must be available on a continuous basis. Increase your system availabilty and protect against unexpected downtime or blue screens (BSOD).

The USB PC Watchdog timer ships with utility programs for control & "tickling" of the board. Sample source code and libraries are also provided in Visual "C" and Visual Basic to allow users to write their own applications to configure or "tickle" the board. Use the CD image download below to see the samples provided along with all the programmer's documentation. The USB PC Watchdog works with Win 2K XP Vista Win7 Win 8 Server2003 Server2008  (32 & 64 Bit Versions on all). It also has LINUX support.

There is also a 4-Pin internal header behind the regular USB connector and an additional mounting hole. This allows it to be installed inside a PC and make a connection to the internal header on the motherboard. If the bracket is removed there are three mounting holes available. The board is so small and light that could also be secured inside the PC with double sided velcro tape. There is a mechanical drawing for the mounting holes available on the CD image download. The board is available with an external 15" (380mm) USB A-B cable to connect to the ATX back panel on a PC. It is also available with a 22 inch (558mm) cable for an internal connection to a PC motherboard header.



  • Connects to USB port or a hub on a PC running Windows and Linux.
  • Receives power from USB bus.
  • Watchdog timer can be set for 5 seconds to 1 hour by DIP switch or 1 second to 18 hours via software control.
  • Has two operating modes. Can be "tickled" by software or passive monitoring of USB bus activity
  • Can be used right from the box with supplied programs.
  • Has an on-board temperature sensor to detect fan failures or other over-temp conditions.
  • Has two temperature trip points for alerting.
  • Programmable option to allow the PC Watchdog to hold the PC in reset after the upper trip occurs.
  • Audible alarm for the temperature trip points.
  • The temperature trip points can be modified by user software.
  • Two externally visible LEDs show status of PC Watchdog.
  • Watchdog has an AUX relay available on an external jack to control devices such as an alarm panel.
  • AUX relay can be set for pulse or latch on after a timeout and PC reset
  • Programmable power-on delay to allow the PC to complete its initialization sequence.
  • Non-Volatile memory to store operating parameters.
  • Eight bytes of non-volatile memory reserved for user data to implement simple software protection.
  • Support for PCs without a motherboard reset header available with: ATX-Reset-Adapter
  • Digital input for logic input, external "tickle" or edge detection.
  • New firmware for non-volatile memory option to allow low temperature trip points.
  • Option to activate buzzer and/or Aux relay at first low-temp trip point.
  • Option to activate buzzer and/or PC reset at second low-temp trip point.


What's Included

The USB PC Watchdog ships with the following:

  • The USB circuit board itself
  • a USB cable(s) External or Internal type - or both
  • a 22" (558mm) 2-conductor Reset cable
  • a CD with software



- This link is for the latest version of the USB Hardware Manual.
USB PC Watchdog PDF Manual

- This link is for the latest version of the Universal DLL Programmer's Manual which describes all the functions provided in the DLL for users who write their own application programs.
Universal DLL PDF Programmer's Manual

- This link is for the current version of the distribution CD that contains all the manuals, programs, drivers, and the sample software. This includes the sample "C" and code for those users who wish to write their own aps or want to incorporate watchdog support into their existing software.
Distribution CD Image File (ZIP File)


PC Watchdog® - is a registered trademark of Berkshire Products, Inc.

Watchdog Options
Bus Type USB 1.1
Bracket Type Standard PC
Power +5V - USB Supplied - 100mA max
Digital Input 1 General Purpose - 5V max
Digital Output N/A
Aux Relays 1 SPST (1 form a) 24V - 0.5A max
Analog Input N/A
External Trigger Input 1 External Trigger - 5V max (Shared with Digital Input)

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