[LOGO]
 
September 9, 1997
To Our Shareholders:
 
    On behalf of the Board of Directors of Vitronics Corporation (the "COMPANY")
we wish to inform you that the Company has entered into an Agreement and Plan of
Merger (the "MERGER AGREEMENT") dated as of September 3, 1997 with Dover
Technologies International, Inc. and its wholly-owned subsidiary, DTI
Intermediate, Inc. ("DTI") pursuant to which DTI has today commenced a cash
tender offer to purchase all of the outstanding shares of common stock ($0.01
par value per share) of the Company at a price of $1.90 per share net to the
seller in cash. Under the Merger Agreement, the offer to purchase will be
followed by a merger in which any remaining shares of the Company's common stock
will be converted into the right to receive $1.90 per share. Consummation of the
offer to purchase and the merger is subject to certain conditions that are more
fully described in the enclosed materials.
 
    YOUR BOARD OF DIRECTORS HAS UNANIMOUSLY DETERMINED THAT THE OFFER TO
PURCHASE AND THE MERGER ARE FAIR TO, AND IN THE BEST INTERESTS OF, THE COMPANY
AND ITS SHAREHOLDERS AND HAS APPROVED THE OFFER TO PURCHASE AND THE MERGER. THE
BOARD OF DIRECTORS THEREFORE UNANIMOUSLY RECOMMENDS THAT THE SHAREHOLDERS OF THE
COMPANY ACCEPT THE OFFER TO PURCHASE AND TENDER THEIR SHARES PURSUANT TO THE
OFFER.
 
    In arriving at its recommendation, the Board of Directors gave careful
consideration to the factors described in the enclosed Schedule 14D-9 that is
being filed today with the Securities and Exchange Commission. The Schedule
14D-9 contains important information relating to the offer to purchase and you
are encouraged to read it carefully.
 
    In addition to the enclosed Schedule 14D-9, also enclosed is the fairness
opinion of Scott-Macon Securities, Inc., DTI's Offer to Purchase dated September
9, 1997, together with related materials, including a Letter of Transmittal, to
be used for tendering your shares if you wish to do so. These documents state
the terms of the offer to purchase and provide instructions as to how to tender
your shares. We urge you to read these documents carefully before making your
decision as to whether to tender your shares pursuant to the Offer to Purchase.
 
                                          FOR THE BOARD OF DIRECTORS
                                          James J. Manfield, Jr.
                                          President and Chief Executive Officer