Filed Pursuant to Rule 424(b)(3)
                                                     Registration No. 333-118438

                          HENRY BROS. ELECTRONICS, INC.
                  (f/k/a Diversified Security Solutions, Inc.)
                         746,999 SHARES OF COMMON STOCK
This Prospectus Supplement No. 1 (the "Prospectus Supplement") supplements and 
amends the Prospectus dated September 8, 2004 (the "Prospectus"), relating to 
the resale from time to time by holders of our shares of common stock. Such 
information has been obtained from the Selling Stockholder. This Prospectus 
Supplement should be read in conjunction with the Prospectus, which is to be 
delivered with this Prospectus Supplement.
Our common stock is quoted on The American Stock Exchange under the symbol
"HBE." The closing price of our common stock on September 27, 2005 was $6.00 per

See "Risk Factors" beginning on page 6 of the Prospectus to read about factors
you should consider before buying our common stock.

Neither the Securities and Exchange Commission, any state securities commission
nor any other regulatory authority, has approved or disapproved the securities
or passed upon or endorsed the merits of this offering or the accuracy or
adequacy of this Prospectus Supplement or the Prospectus or the documents
incorporated by reference therein. Any representation to the contrary is a
criminal offense.


The following table sets forth, as of the date hereof, information regarding the
beneficial ownership of our common stock by the Selling Stockholder, and
supplements and amends the information in the table appearing under the heading
"Selling Stockholders" in the Prospectus. The shares of common stock being
registered, which are issuable upon the exercise of warrants, were transferred
to the Selling Stockholder by Lakeshore International, Ltd. in the amount of
15,625, Merced Partners Limited Partnership in the amount of 15,625, Tamarack
International, Ltd. in the amount of 55,000 and Global Bermuda Limited
Partnership in the amount of 13,750. In the table below, the percentage
ownership after the offering is based upon the assumed sale by the Selling
Stockholder of all shares they may offer for sale pursuant to this Prospectus.
Beneficial ownership is determined according to the rules of the SEC, and
generally means that a person has beneficial ownership of a security if he, she
or it possesses sole or shared voting or investment power of that security, and
includes options that are currently exercisable or exercisable within 60 days.
The percentages for the Selling Stockholder are calculated based on 5,739,398
shares of our common stock issued and outstanding as of June 17, 2005, plus the
additional shares that the Selling Stockholder is deemed to beneficially own, if
any, as set forth in the table. The shares offered by this Prospectus shall be
deemed to include shares offered by 


any pledgee, donee, transferee or other successor in interest of the
Selling Stockholder below, provided that this Prospectus is amended or
supplemented if required by applicable law.

                                                   Beneficial Ownership                        Beneficial Ownership
                                                   Before this Offering                        After this Offering
                                                   --------------------                        --------------------

                                                  Number of                  Shares Being     Number of
                     Name                          shares      Percentage       Offered         Shares     Percentage
                     ----                          ------      ----------       -------         ------     ----------

Crestview Capital Master LLC                      100,000           1.71       100,000 (1)         0        *

* Less than one percent

(1) The shares beneficially owned and being offered by Crestview Capital Master
LLC ("CCM") consist of 100,000 shares issuable upon the exercise of warrants
(exercisable commencing January 27, 2005) with an exercise price of $7.60 per
share. Crestview Capital Partners ("CCP") is the sole managing member of CCM and
may be deemed to have sole voting and investment power with respect to the
securities beneficially owned by CCM; however, CCP disclaims beneficial
ownership of these securities.