short description
  • contact sensor for use with a PC
  • USB device with 1.9 m USB cable
  • Network enabled - remote access possible
  • Export of the measured values for Excel etc.
  • Application Program Interface for easy integration in user applications
  • The control software ClewareControl for timed switching, USBswitch with a graphical user interface and USBswitchCmd for switching via command call is ready for download
  • Any sensor may control up to 256 actions, e.g. alarm sound, email or USB-Switch
  • No driver installation needed with Windows Operating Systems since Win 2K (® Microsoft Windows is a registered trademark of the Microsoft Corporation.)
  • Auch unter verschiedenen Versionen von Linux verwendbar.
  • RoHS, CE & EN60950 conform/ IP30
  • Any sensor identifies with a unique serial number
  • Less then 25 mA power consumption
  • 4 years warranty
  • Made in Germany
  • also available with 2 channels (USB-Contact2) or 16 Channels (USB-IO16)
    and with 3,7 m USB-Cable (USB-Contact L)


The contact sensor USB-Contact supplies a 5 V output which could be connected to a switch or a floating relais contact. The output is accessible through a 3.5' mono jack. The state of the contact is reported over the USB connection to the PC. Typical applications are smoke sensors with relais outlet, reed contacts at doors or windows or foot switches.

The size of the sensor is about 44 x 30 x 23 mm and it is connected to the PC using a 2 m long USB cable. The product is guarranteed for 4 years. The valid temperature range for using USB-Contact is -20° to +80° C. Using the sensor outside this range may destroy it..

Up to 127 sensors may theoretically be connected to a PC using several HUBs. This makes it very easy to compare the temperature of different places. When using Cleware USB devices it is not neccessary to install device drivers. The standard USB drivers are sufficient. So the system stability will not be harmed.

The USB-Contact will be delivered with the software ClewareControl for accesing and managing measured values. The software is running with Windows® variants that support USB. (® Microsoft Windows is a registered trademark of the Microsoft Corporation.) No special device drivers are neccessary to use the Cleware USB devices. The already installed device driver are sufficient.

The application ClewareControl will do the contact state visualisation. Every sensor may control up to 256 actions such as sound, email, execution of any program or switch an USB-Switch.

The USB-Contact may also be controlled via the network. The connection is established with the TCP/IP protocol. On the remote control PC the USB-Contact appears like a local device and could be handled the same way. Several devices even on different PCs could be controlled simultaniously.

An application Program interface (API) to drive the USB-Contact from customer programs is part of the delivery. The API bundles some very simple functions for opening and reading the device. The complex USB device handling is hided. Linux support is also available.

Every Sensor got its unique serial number. This make it easy to identify the devices even when the USB plug position changes or new USB devices are connected.

The usage of the USB-Contact is strictly prohibited in the following applications:

  • medical application of any kind
  • when the failure of the sensor will harm people