Promissory Note (2003)Full Document 

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                                                                   PROMISSORY NOTE

$200,000 USD                                                    October 28, 2002

FOR VALUE RECEIVED, the undersigned, Invisa, Inc., a Nevada Corporation, of 4400
Independence Court, Sarasota, Florida 34234 ("Borrower") promises to pay to the
order of Daimler Capital Partners, Ltd., a British Virgin Islands Corporation,
at 2, rue Thalberg CP 1507 CH-1211 Geneva 1 Switzerland ("Lender") or such other
place as the holder may designate in writing to the undersigned, the principal
sum of two hundred thousand United States Dollars ($200,000 USD), (the "Funds")
together with prepaid interest thereon from date hereof until paid, at the rate
of fifteen percent (15%) per annum as follows:

The entire principal amount and prepaid interest of two hundred ten thousand
United States Dollars ($210,000 USD) shall be repaid on February 28, 2003 but
may be extended at the option of the Borrower until April 28, 2003 on terms
described below (the "Extension Option"). The Extension Option shall allow the
borrower to extended its payment of principal and prepaid interest beyond
February 28, 2003. Payments made after February 28, 2003 shall equal the
principal amount and prepaid interest of two hundred fifteen thousand United
States Dollars ($215,000 USD). If the Borrower elects the Extension Option, then
the Borrower shall grant the Lender an option to purchase fifty thousand
(50,000) common shares par value $0.001 of Invisa, Inc. at $1.00 per share until
April 28, 2006. The underlying shares shall have the same registration rights as
described below for the options described as the "Setup Fee".

Payments shall be applied first to prepaid interest and the balance to
principal.

All or any part of the aforesaid principal sum and prepaid interest may be
prepaid at any time and from time to time without penalty. The Borrower agrees
to pay to Lender ten percent (10%) of any funds received by the Borrower from
the placement of the Borrower's equity of any kind or funds received from
additional debt the Borrower may arrange, excluding the Borrower's existing
lines of credit, funds from new loans guaranteed by shareholders, funds from new

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