SCHEDULE 14A INFORMATION
Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

Filed by the Registrant [X]

Filed by a party other than the Registrant [   ]

Check the appropriate box:



     
[ ]    Preliminary Proxy Statement
[ ]    Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
[ ]    Definitive Proxy Statement
[X]    Definitive Additional Materials
[ ]    Soliciting Material Pursuant toss.240.14a-11(c) orss.240.14a-12


                              TII Industries, Inc.
                              --------------------
                (Name of Registrant as Specified in Its Charter)


    (Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

[X]      No fee required

[ ]      Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11

         1)       Title  of  each  class  of  securities  to  which  transaction
                  applies:

         2)       Aggregate number of securities to which transaction applies:

         3)       Per  unit  price  or other  underlying  value  of  transaction
                  computed  pursuant  to  Exchange  Act Rule 0-11 (Set forth the
                  amount on which the filing fee is calculated  and state how it
                  was determined):

         4)       Proposed maximum aggregate value of transaction:

         5)       Total fee paid:

[ ]      Fee paid previously with preliminary materials.

[ ]      Check box if any part of the fee is offset as provided by Exchange  Act
         Rule  0-11(a)(2)  and identify the filing for which the  offsetting fee
         was paid  previously.  Identify  the  previous  filing by  registration
         statement number, or the Form or Schedule and the date of its filing.

         1)       Amount Previously Paid:

         2)       Form, Schedule or Registration Statement No.:

         3)       Filing Party:

         4)       Date Filed:




                                [On letterhead of
                        COMPUTERSHARE INVESTOR SERVICES]



                                                               November 16, 2000


To Holders of Record of Common Stock
                  of
TII Industries, Inc. on October 13, 2000:

         On  November  6,  2000,  we  mailed  to  stockholders  of record of TII
Industries,  Inc.  (the  "Company")  on  October  13,  2000  ("Record  Holders")
materials to enable those stockholders to vote by proxy at the Annual Meeting of
Stockholders  of the  Company  to be held  on  December  6,  2000  (the  "Annual
Meeting").

         It has come to our attention that we may have  inadvertently  forwarded
to some  Record  Holders  a proxy  statement  other  than  the  Company's  proxy
statement,  together with the Company's  Annual Report and proxy card for voting
at the Annual Meeting.  All  stockholders  received the Company's Annual Report.
This will not affect  stockholders  whose  shares  are held in "street  name" by
brokers,  banks and nominees since the correct proxy materials were  distributed
to those persons in another manner.

         Since we are unable to determine which Record Holders may have received
the  wrong  materials,  the  Company  has  asked us to mail to you,  as a Record
Holder,  the  enclosed  proxy  statement  and another (but blue) proxy card with
respect to the Annual Meeting.                             ----

         All proxies previously submitted by Record Holders will not be counted.

                             YOUR VOTE IS IMPORTANT.

         WHETHER OR NOT YOU EXPECT TO ATTEND THE MEETING,  PLEASE COMPLETE, DATE
AND SIGN THE  ENCLOSED  BLUE PROXY  CARD AND MAIL IT  PROMPTLY  IN THE  ENCLOSED
ENVELOPE IN ORDER TO ASSURE  REPRESENTATION  OF YOUR SHARES.  NO POSTAGE NEED BE
AFFIXED IF MAILED IN THE ENCLOSED ENVELOPE IN THE UNITED STATES.

         WE  APOLOGIZE  FOR THE ERROR WE MADE WHICH WAS NOT IN ANY WAY THE FAULT
OF TII INDUSTRIES, INC.

                                                 Very truly yours,



                                                 COMPUTERSHARE INVESTOR SERVICES