Check whether the issuer (1) has filed all reports required to be filed by Section 13 or 15 (d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file reports), and (2) has been subject to such filing requirements for the past 90 days.    YES [X] NO [   ],

Indicate by check mark whether the registrant is an accelerated filer (as defined in Rule 12b-2 of Act). Yes [  ]    NO [X]

Common stock outstanding as of April 30, 2003 was 9,685,274 shares.

PART I. Financial Information	Page No.
Item 1. Financial Statements (unaudited):
Condensed Consolidated Balance Sheets as of            March 31, 2003 and December 31, 2002	**
Condensed Consolidated Statements of Operations for the            Three Months ended March 31, 2003 and 2002	**
Condensed Consolidated Statements of Cash Flows for the            Three Months ended March 31, 2003 and 2002	**
Notes to Condensed Consolidated Financial Statements	**
Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations	**
Item 3. Quantitative and Qualitative Disclosures About Market Risk	**
Item 4. Controls and Procedures	**
PART II. Other Information
Item 6. Exhibits and Reports on Form 8-K	**
Signatures	**

CONDENSED CONSOLIDATED BALANCE SHEET
(Unaudited, in thousands, except for per share data)

Shareholders' equity:

The accompanying notes are an integral part of these financial statements.

CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS
(Unaudited, in thousands, except per share data)

The accompanying notes are an integral part of these financial statements.

CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS
(Unaudited, in thousands)

The accompanying notes are an integral part of these financial statements.

NOTES TO THE CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
(Unaudited)

1. INTERIM FINANCIAL STATEMENTS

The accompanying condensed consolidated financial statements for the three months ended March 31, 2003 and 2002 are unaudited and have been prepared in accordance with generally accepted accounting principles in the United States of America and in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by generally accepted accounting principles in the United States of America for complete financial statements. In the opinion of management, the unaudited condensed consolidated financial statements reflect all adjustments, consisting only of normal recurring adjustments, considered necessary to present fairly the financial position, results of operations and cash flows of Scientific Technologies Inc. (the "Company") and its subsidiaries for all periods presented.

To prepare these condensed consolidated financial statements in conformity with generally accepted accounting principles, management of the Company has made a number of estimates and assumptions relating to the reporting of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements and revenue and expenses during the reporting period. Actual results could differ from those estimates.

The results of operations are not necessarily indicative of the results to be expected in the future or for the full fiscal year. It is recommended that these condensed consolidated financial statements be read in conjunction with the Company's audited consolidated financial statements and the notes thereto included in its 2002 Annual Report on Form 10-K.

STOCK-BASED COMPENSATION

Statement of Financial Accounting Standards ("SFAS") No. 148, issued in December 2002, amends SFAS No. 123 to require that disclosures of the pro forma effect of using the fair value method of accounting for stock-based employee compensation be presented on a quarterly basis and displayed more prominently and in a tabular format. The following table sets forth the effect on the Company's net income (loss) and net income (loss) per share as if the Company had recorded compensation costs based on the estimated grant date fair value as defined by SFAS No. 123 for all granted stock-based awards (in thousands, except per share amounts).

	Three Months Ended March 31,
	2003	2002
Net income (loss), as reported	$ 90	$(207)
Add: Stock-based employee compensation expense     included in reported net income (loss)	-	-
Deduct: Stock-based employee compensation expense     determined under fair value based method for     all awards, net of tax	26	20
Pro forma net income (loss)	$ 64	$(227)
Net income (loss) per share - basic and diluted:
As reported	$ 0.01	$ (0.02)
Pro forma	$ 0.01	$ (0.02)

2. INVENTORIES

Inventories consist of the following (In thousands):

3. NET INCOME (LOSS) PER SHARE

A reconciliation of the numerators and denominators used to compute basic and diluted income (loss) per common share is provided below.

	(In thousands)
	Income	Shares	(Per share) Amount
Three months ended March 31, 2003
Basic earnings per share calculation	$ 90	9,685	$ 0.01
Effect of dilutive securities    Stock options		35
Diluted earnings per share calculation	$ 90	9,720	$ 0.01
Three months ended March 31, 2002
Basic loss per share calculation	$ (207)	9,676	$ (0.02)

4. COMPREHENSIVE INCOME (LOSS)

For the three months ended March 31, 2003 and 2002, there is no significant difference between net income (loss) and comprehensive income (loss).

5. SEGMENT REPORTING AND OTHER INFORMATION

Financial information for each product group is as follows: (in thousands)

The Company operates principally in the United States. The Company's operations in Germany are less than 10% of total operations. Sales to foreign customers represented less than 10% of total sales in the three months ended March 31, 2003 and 2002.

6. COMMITMENT AND CONTINGENCIES

The Company offers warranties on certain products and records a liability for the estimated future costs associated with warranty claims, which is based upon historical experience and the Company's estimate of the level of future costs. A reconciliation of the changes in the Company's warranty liability follows (in thousands):

Warranty accrual at January 1, 2003 Accruals for warranties issued Expenses incurred   Warranty accrual at March 31, 2003

$ 241 56 (56) $ 241

As permitted under Oregon law the Company has agreements whereby the Company indemnifies its officers and directors for certain events or occurrences while the officer or director is, or was serving at the Company's request in such capacity. The indemnification term is for the period that the officer or director is serving in such capacity or is subject to any possible claim or action by reason of the fact that the Indemnitee was serving in that capacity. The maximum potential amount of future payments by the Company could be unlimited; however the Company has a director and officer insurance policy that limits the Company's exposure and enables the Company to recover a portion of any future amounts paid. As a result of the insurance policy coverage, the Company believes that the estimated fair value of these agreements is minimal.

This interim report on Form 10-Q contains trend analysis and other forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Act of 1934. Such statements include expectations, beliefs, intentions or strategies regarding future operating results, future expenditures, future cash requirements, future impact of the relocation of the PSI-Tronix division and future industry conditions that involve risks and uncertainties. The Company's actual results could differ materially from those projected in such forward-looking statements as a result of many factors, including, without limitation, those set forth under this section, the section entitled "Business Factors" below and elsewhere in this report on Form 10-Q.

Results of Operations
(Amounts in thousands, except percentages)

Scientific Technologies Incorporated designs, manufactures and distributes automation safeguarding and specialty sensor products for the industrial control market. The Company's products include safety light guards, profiling scanners, factory automation sensors, controls, components, microcomputers, fiber optics, power monitoring devices, safety mats, pressure, displacement and velocity transducers, digital pressure gauges and comparators and other electronic equipment supplied to industrial automation, commercial and defense customers.

Sales for the three months ended March 31, 2003 increased 15% to $12,959 from $11,229 in the comparable period in 2002. During the first quarter of 2003, we experienced an increase in shipments in both the Safety Products Group ("SPG") and Automation Products Group ("APG"). As a result of continuing sluggishness in the semiconductor markets our sales growth at APG was not as robust as SPG.

Gross margin as a percentage of sales for the first quarter of 2003 remained constant at 43% for the first quarters of 2003 and 2002.

Selling, general and administrative expenses for the three months ended March 31, 2003 increased 8% to $4,084 from $3,773 in the same period of 2002. This was a result of costs associated with the higher sales levels. We were able to keep our selling, general and administrative expense percentage increases in the first quarter of 2003 to almost 50% of the rate of sales increase. As a percent of sales for the three months ended March 31, 2003, selling, general and administrative expenses were 32% compared to 34% for the same period in 2002.

Research and development expenses for the first quarter of 2003 declined 6% to $1,173 from the $1,248 recorded in the first three months of 2002. This was primarily the result of lower consulting expenses in the first quarter of 2003 compared to the comparable 2002 period. As a percent of sales for the three months ended March 31, 2003, research and development expenses were 9% compared to 11% for the same period of 2002.

Our effective income tax rate for the three months ended March 31, 2003 was 38%. As a result of the loss sustained in the first quarter of 2001, we recorded an income tax benefit of 38%. Income taxes payable or receivable are calculated on a stand alone basis and are recorded as a payable to or receivable from our parent, who files a consolidated tax return which includes our accounts.

Intercompany transactions between our parent company and us include charges to our parent for management services provided by us, dividend payments to our parent and other cash transfers.

At March 31, 2003, our working capital increased slightly to $16,752 compared to $16,428 reported at December 31, 2002.

Available bank borrowings were $6,100, all of which were unused at March 31, 2003. We believe that cash from operations, together with cash resources and available bank borrowings, will be sufficient to fund working capital requirements for the next twelve months.

A discussion of our critical accounting policies is set forth in our 2002 Annual Report on Form 10-K, which was filed with the Securities and Exchange Commission on March 3l, 2003. There were no material changes in any of our critical accounting estimates or judgments during the first quarter of 2003.

Because of the variety of factors and uncertainties affecting our operating results, past financial performance and historic trends may not be a reliable indicator of future performance. These factors, as well as other factors affecting our operating performance, may result in significant volatility in our common stock price. Among the factors which could affect our future business, financial condition or operating results are the following:

We have experienced fluctuations in annual and quarterly operating results and anticipate that these fluctuations will continue. These fluctuations are caused by a number of factors, including the level and timing of customer orders, fluctuations in purchases of complementary third party products with which our products are sold, the mix of products sold and the timing of operating expenditures. Our operating results have been, and could continue to be negatively impacted by generally adverse economic conditions throughout the high technology sector. In particular, the relocation of our PSI-Tronix subsidiary may prove to be more costly than anticipated or may not result in the expected benefits, and its continuing decreases in sales due to the current market conditions in the semiconductor industry could negatively effect our operating results.

The industrial manufacturing equipment industry in which we compete has historically been subject to seasonality. This is also true with respect to European markets in which we compete where business activity declines due to vacations taken in the summer months. This seasonality, combined with other factors such as the variability in our operating results described above, renders quarter-to-quarter comparisons of our results of operations unreliable as indicators of our overall performance.

The market for industrial sensors is highly competitive. Many competitors have substantially greater name recognition and technical, marketing and financial resources than we have. Competitive pressures could reduce market acceptance of our products and result in price reductions, decreased revenues and increases in expenses.

The market for our products is characterized by changing technology, evolving industry standards, changes in customer needs and new product introductions. Our future success will depend on our ability to enhance current products, develop new products and respond to emerging industry standards, all on a timely and cost-effective basis. The introduction of new products also requires that we manage the transition from older products in order to minimize disruption of customer orders, avoid excessive levels of older product inventories and ensure that adequate supplies of new products can be delivered to meet customer demands.

A majority of our sales are through third party distributors, system integrators and original equipment manufacturers. These resellers are not required to offer our products exclusively. We cannot be assured that a reseller will continue to offer our products. In addition many of our resellers are privately owned firms which may not be well capitalized. If our ability to sell products through these third parties is impaired, our results of operations would likely suffer.

Our international sales may be disrupted by currency fluctuations or other events beyond our control, including political or regulatory changes. If our international sales were disrupted for any reason, our revenue levels would decline.

We rely on a combination of patent, trademark and trade secret laws and contractual restrictions to establish and protect proprietary rights in our products and services. There can be no assurance that our patents, trademarks, or contractual arrangements or other steps taken by us to protect our intellectual property will prove sufficient to prevent misappropriation of our technology or defer independent third party development of similar technologies. Moreover, there can be no assurance that the technology licenses granted to us from our parent company will continue to be available. The loss of any of our proprietary technology could require us to obtain technology of lower quality or performance standards or at greater cost, which could materially adversely affect our business, results of operations and financial condition. Furthermore, the laws of certain foreign countries may not protect our products, services or intellectual property rights to the same extent as do the laws of the United States.

The market risk inherent in our investments represents the potential loss arising from adverse changes in interest rates. We are exposed to market risk in the area of interest rate changes impacting the fair value of our investment securities. Our policy is to invest primarily in money market accounts and short-term investments held at financial institutions. We do not have any derivative instruments in our investment portfolio. Due to their highly liquid nature, our investments are subject to minimal credit and market risk.

(a) Within the 90 days prior to the date of this report, the Company carried out an evaluation, under the supervision and with the participation of senior management, including the Company's officers performing the functions of Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of its disclosure controls and procedures. Based upon that evaluation, the Company's officers performing the functions of Chief Executive Officer and Chief Financial Officer concluded that its disclosure controls and procedures are effective for gathering, analyzing and disclosing the information that the Company is required to disclose in reports filed under the Securities Exchange Act of 1934.

(b) There have been no significant changes in the Company's internal controls or in other factors that could significantly affect internal controls subsequent to the date the Company carried out this evaluation.

Items 1- 5 are not applicable for this reporting period.

(a) The following documents are filed as a part of this Report:

Exhibit 3.1 -	Articles of Incorporation, as amended, are incorporated by reference to the Registrant's Form 10-K for the year ended December 31, 1988, Exhibit 3.1.
Exhibit 3.3 -	By-Laws are incorporated by reference to the Registrant's Form 10-K for the year ended December 31, 1985, Exhibit 3.
Exhibit 4.1 -	1997 Employee Stock Purchase Plan is incorporated by reference to the Registrant's Registration Statement on Form S-8 dated October 2, 1998.
Exhibit 4.2 -	1997 Stock Plan is incorporated by reference to the Registrant's Registration Statement on Form S-8 dated October 2, 1998.
Exhibit 24.1 -	Power of Attorney is incorporated by reference to the Registrant's Form 10-K for the year ended December 31, 2002, Exhibit 24.1.
Exhibit 99.1 -	Certification of Chief Executive and Chief Financial Officers

(b) No Reports on Form 8-K were filed during the first three months of 2003.

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

I, Joseph J. Lazzara, certify that: