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Reserved for Broadridge Internal Control Information

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the Securities
Exchange Act of 1934 (Amendment No. )

Filed by the Registrant þ
Filed by a Party other than the Registrant o

Check the appropriate box:

o		Preliminary Proxy Statement
o		Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
o		Definitive Proxy Statement
þ		Definitive Additional Materials
o		Soliciting Material Pursuant to §240.14a-12

RAE Systems 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):

þ		No fee required.
o		Fee computed on table below per Exchange Act Rules 14a-6(i)(4) and 0-11.

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

			N/A


	(2)		Aggregate number of securities to which transaction applies:

			N/A


	(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):

			N/A


	(4)		Proposed maximum aggregate value of transaction:

			N/A


	(5)		Total fee paid:

			$0.00

o		Fee paid previously with preliminary materials.

o		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:



			Persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.

*** Exercise Your Right to Vote ***

Important Notice Regarding the Availability of Proxy Materials for the
Shareholder Meeting to Be Held on June 11, 2010

RAE SYSTEMS INC.

Meeting Information

Meeting Type: Annual Meeting

For holders as of: April 19, 2010

Date: June 11, 2010 Time: 9:00 AM PDT

Location:

Santa Clara Hilton

4949 Great America Parkway

Santa Clara, California

You are receiving this communication because you hold shares in the above named company.

This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com or easily request a paper copy (see reverse side).

We encourage you to access and review all of the important information contained in the proxy materials before voting.

See the reverse side of this notice to obtain proxy materials and voting instructions.

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— Before You Vote —

How to Access the Proxy Materials

Proxy Materials Available to VIEW or RECEIVE:

1. Notice & Proxy Statement 2. Annual Report

How to View Online:

Have the 12-Digit Control Number available (located on the following page) and visit: www.proxyvote.com.

How to Request and Receive a PAPER or E-MAIL Copy:

If you want to receive a paper or e-mail copy of these documents, you must request one. There is NO charge for requesting a copy. Please choose one of the following methods to make your request:


1) BY INTERNET:		www.proxyvote.com
2) BY TELEPHONE:		1-800-579-1639
3) BY E-MAIL*:		sendmaterial@proxyvote.com

If requesting materials by e-mail, please send a blank e-mail with the 12-Digit Control Number (located on the following page) in the subject line.

Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor. Please make the request as instructed above on or before May 30, 2010 to facilitate timely delivery.

— How To Vote —

Please Choose One of the Following Voting Methods

Vote In Person: Many shareholder meetings have attendance requirements including, but not limited to, the possession of an attendance ticket issued by the entity holding the meeting. Please check the meeting materials for any special requirements for meeting attendance. At the meeting you will need to request a ballot to vote these shares.

Vote By Internet: To vote now by Internet, go to www.proxyvote.com. Have the 12-Digit Control Number available and follow the instructions.

Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a proxy card.

Voting items

The Board of Directors recommends that you
vote FOR the following:

Election of Directors

Nominees

01 Lyle D. Feisel 02 Keh-Shew Lu

The Board of Directors recommends you vote FOR the following proposal(s):

To ratify the appointment of Deloitte & Touche LLP as our independent registered public accounting firm for the fiscal year ending December 31, 2010.

NOTE: The undersigned hereby further confers upon said proxies, and each of them, or their substitute or substitutes, discretionary authority to vote with respect to all other matters that may properly come before the meeting or any continuation or adjournment thereof. The undersigned hereby acknowledges receipt of: (a) a Notice of Annual Meeting of Stockholders of the Company, (b) an accompanying Proxy Statement, and (c) an Annual Report to Stockholders for the fiscal year ended December 31, 2009.



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	NAME

	THE COMPANY NAME INC. - COMMON			123,456,789,012.12345
	THE COMPANY NAME INC. - CLASS A			123,456,789,012.12345
	THE COMPANY NAME INC. - CLASS B			123,456,789,012.12345
	THE COMPANY NAME INC. - CLASS C			123,456,789,012.12345
	THE COMPANY NAME INC. - CLASS D			123,456,789,012.12345
	THE COMPANY NAME INC. - CLASS E			123,456,789,012.12345
	THE COMPANY NAME INC. - CLASS F			123,456,789,012.12345
	THE COMPANY NAME INC. - 401 K			123,456,789,012.12345


				Broadridge Internal Use Only

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