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     ... RFID Monitoring Solutions

    VarioSens® - The Smart Card Logger

    VarioSens® is a new “smart card” temperature logger that is also a RFID tag.
    It does everything that a normal temperature logger can do, but also functions as a supply chain tracking tool. Anything you can do with an RFID tag, VarioSens® does it too.

    Although it is a temperature logger, it has some important advantages
    • It has a superior price performance ratio compared with so-called temperature logger gladly
    • It is lighter in weight and size, so it is cost-effective for shipping and storage
    • You can do remote, high speed reading of the complete temperature record
    • It has a paper-thin pollution free battery, which permits its own measuring enterprise of the label outside of the range to a read-/write-station
    • It is several times usable. By the small price also one-way - applications are economical.
    • It is a very flexible product

    Why VarioSens®?


    Cost advantage
    • Superior price performance ratio than any temperature logger
    • One-way's applications are for the first time economically representable by the favourable price of the VarioSens®
    • No disposal costs after the “ElektroG”-law due to lithium-free battery

    Easy handling
    • User-friendly software interfaces make a smooth integration into customized software solutions possible
    • VarioSens® communicates to compatible readers with ISO 15693

    High level technology and application authority
    • Evaluation and analysis of possible applications
    • Technical and scientific steering of individual process implementation
    • Return on Investment analyses for most different applications

    Time Projection
    • VarioSens® is a complete developed product which is immediately available
    • ß All first trials in different applications were completed successfully

    Convincing arguments for VarioSens®

    • flexible
    • inexpensive
    • environmentally friendly battery
    • compatible with standard readers
    • software user-friendly

    What does VarioSens®?

    VarioSens® ensures a permanent monitoring of temperature-sensitive goods as medical products (blood bags, serums, pharmaceuticals), easily perishable food or flowers. VarioSens® enables a fast documentation of process- and storage temperatures through the easy handling.

    VarioSens® measures temperature data by means of a calibrated sensor and stores them directly on the chip.

    To read out the recorded data is very easy and they can be used in several software programs. Against unauthorized access VarioSens® is secured by a 3-level-password system.

    VarioSens® is provided with user-friendly software interfaces and can be integrated into customized software solutions smoothly.

    VarioSens® - Technical maximum output

    VarioSens® meets the highest mechanical requirements already in the basic version:

    The extreme conditions of 3880 rpm (5000g) in the centrifuge for blood bags don’t have any influence on functionality, optic and life cycle of the VarioSens®

    How is VarioSens® used?

    VarioSens® can be started by a simple starting device that is either battery powered or line powered. Just hold the card over the activation surface, listen for the beep, and it is running! No cables, cradles or connectors are required. Tags can be user configured to run for different recording times, or can be purchased with pre-programmed settings that match a particular application.

    Starting can also be initiated with VarioSens® Software running on a PC with an RFID reader attached. Features such as delayed start be set up by using the PC/Software starting method.

    When the recording is finished (at the end of the trip or other monitoring episode) the tag information can be downloaded either by the PC with RFID reader attached OR by a PDA with a SD- or CF-reader. A single reading takes less than 2 seconds, even for a tag that is completely full of data. The data can then be sent to a desktop printer or portable device to print out a chart that displays the entire time-temperature-profile.

    Excellent Software for individual requirements

    There are two different types of software available for first or test applications.
    The VarioSens® desktop software is suitable for PC and laptop solutions.
    The new solution VarioSens® mobile software is suitable for handheld solutions.

    The KSW Microtec Difference

    KSW Microtec is a leading global manufacturer of passive and active RFID components for standard and special applications such as ticketing, contactless creditcards or cold chain and logistics.

    You can find our standard products in the new RFID tickets of Moscow Metro, in the tickets for the FIFA world cup as well as in contactless credit cards of American Express.

    Our smart active product, the VarioSens®, can be seen on every single blood bag in the blood donation service in Dresden or in some transportation packages of human organics in Germany.

    Our smart active products protect and preserve our customers products from the plant or warehouse through the rigors of the distribution chain.

    Now, with VarioSens®, we are taking the next step to provide information that ensures product protection.

    This is a technology with unparalleled experience and commitment behind it.

    The Facts

    Data points 0 up to 720 values (10Bits per value)
    Operating temperature -20°C up to 50°C
    Temperature accuracy 1 K
    Monitoring time span 2s up to 9h
    Monitoring delay 0 up to 720 days
    RFID interface 13,56 MHz, ISO 15693
    Read distance 0 up to 25cm (Reader 1W, antenna 30x30cm)
    Operating speed 0,6 s for reading the whole data (720 datas)
    Memory 8kBit EEPROM
    Safety 3-level-password system
    Battery MnO2Zn - printed battery (1,5V ... 1,1V)
    min. voltage 1,1V (Chip controls battery)
    battery capacity > 6mA/h
    memory 8kBit EEPROM


    For an overview of the SAL Data Sheets see:
    Download_SAL
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