REVOLVING
      CREDIT NOTE

     

    
      	
              $750,000.00

            	
              Dallas,
                Texas

            	
              November
                10, 2008    

            


    

     

    FOR
      VALUE
      RECEIVED, the undersigned, ISECURETRAC
      CORP.,
      a
      Delaware corporation (the "Maker"),
      hereby promises to pay to the order of CRESTPARK
      LP, INC.
      (the
      "Lender"),
      at
      its offices c/o Sammons Corporation, 5949 Sherry Lane, Suite 1900, Dallas,
      Texas
      75225, or at such other location as the Lender may designate to the Maker in
      writing, on or prior to July 1, 2010 (the "Revolving
      Maturity Date"),
      in
      lawful money of the United States of America, the principal sum of SEVEN HUNDRED
      FIFTY THOUSAND AND NO/100 DOLLARS ($750,000.00) or so much thereof as may be
      advanced and outstanding hereunder, together with interest on the outstanding
      principal balance from day to day remaining as herein specified. 

     

    This
      Revolving Credit Note (this "Note")
      has
      been executed and delivered by the Maker pursuant to the terms of that certain
      Loan Agreement dated as of November 10, 2008, by and between the Maker and
      the
      Lender (as the same may be amended, supplemented, restated or modified from
      time
      to time, the "Loan
      Agreement")
      and is
      the Revolving Credit Note described therein. All capitalized terms used and
      not
      otherwise defined herein shall have the same meanings as set forth in the Loan
      Agreement. Reference is made to the Loan Agreement for all terms and provisions
      affecting this Note.

     

    The
      outstanding principal balance of this Note shall be due and payable on the
      Revolving Maturity Date. The principal hereof and interest accruing thereon
      shall be due and payable as provided in the Loan Agreement. 

     

    The
      Maker
      shall have the right to prepay, at any time and from time to time without
      premium or penalty (other than those set forth in the Loan Agreement, if any),
      the entire unpaid principal balance of this Note or any portion thereof in
      accordance with the Loan Agreement. 

     

    Notwithstanding
      anything to the contrary contained herein, no provisions of this Note shall
      require the payment or permit the collection of interest in excess of the
      Maximum Rate. If any excess of interest in such respect is herein provided
      for,
      or shall be adjudicated to be so provided, in this Note or otherwise in
      connection with this loan transaction, the provisions of this paragraph shall
      govern and prevail, and neither Maker nor the sureties, guarantors, successors
      or assigns of the Maker shall be obligated to pay the excess amount of such
      interest, or any other excess sum paid for the use, forbearance or detention
      of
      sums loaned pursuant hereto. If for any reason interest in excess of the Maximum
      Rate shall be deemed charged, required or permitted by any court of competent
      jurisdiction, any such excess shall be applied as a payment and reduction of
      the
      principal of indebtedness evidenced by this Note; and, if the principal amount
      hereof has been paid in full, any remaining excess shall forthwith be paid
      to
      the Maker. In determining whether or not the interest paid or payable exceeds
      the Maximum Rate, Maker and Lender shall, to the extent permitted by applicable
      law, (i) characterize any non-principal payment as an expense, fee, or
      premium rather than as interest, (ii) exclude voluntary prepayments and the
      effects thereof, and (iii) amortize, prorate, allocate, and spread in parts
      the total amount of interest throughout the entire contemplated term of the
      indebtedness evidenced by this Note so that the interest for the entire term
      does not exceed the Maximum Rate.

     

    Revolving
      Credit Note


    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

     

    The
      Maker
      and each surety, guarantor, endorser, and other party ever liable for payment
      of
      any sums of money payable on this Note jointly and severally waive notice,
      presentment, demand for payment, protest, notice of protest and non-payment
      or
      dishonor, notice of acceleration, notice of intent to accelerate, notice of
      intent to demand, diligence in collecting, grace, and all other formalities
      of
      any kind, except any notice and grace periods provided in the Loan Agreement,
      and consent to all extensions without notice for any period or periods of time
      and partial payments, before or after maturity, and any impairment of any
      collateral securing this Note, all without prejudice to the holder. The holder
      shall similarly have the right to deal in any way, at any time, with one or
      more
      of the foregoing parties without notice to any other party, and to grant any
      such party any extensions of time for payment of any of said indebtedness,
      or to
      release or substitute part or all of the collateral securing this Note, or
      to
      grant any other indulgences or forbearances whatsoever, without notice to any
      other party and without in any way affecting the personal liability of any
      party
      hereunder.

     

    If
      this
      Note is not paid when due, whether at maturity or by acceleration, or if it
      is
      collected through a bankruptcy, probate or other court, whether before or after
      maturity, the undersigned agrees to pay all costs of collection, including
      but
      not limited to reasonable attorneys' fees and expenses, incurred by the holder
      hereof.

     

    THIS
      NOTE
      SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE
      OF
      TEXAS AND THE APPLICABLE LAWS OF THE UNITED STATES OF AMERICA. THIS NOTE IS
      PERFORMABLE IN DALLAS COUNTY, TEXAS.

    

      
        	
                MAKER:

              
	 
	
                ISECURETRAC
                  CORP.,

              
	
                a
                  Delaware corporation

              
	 
	 	 
	
                By:

              	
                /s/
                  Peter A. Michel

              
	 	
                Name:
                  Peter A. Michel

              
	 	
                Title:
                  Chief Executive Officer

              


      

    

     

    Revolving
      Credit Note