ESTeem Wireless Modems Announces Type Acceptance in Brazil

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Kennewick, WA — January 25, 2013 — Electronic Systems Technology, Inc. (EST) (OTCQB:ELST), dba ESTeem Wireless Modems, with the cooperative efforts of SDC Engenharia de Sistemas Ltda.,has been granted type acceptance in Brazil on the Model 195Eg-2 and 195Eg-lp-2 modems. SDC Engenhariade Sistemas Ltda. has been an active distributor of ESTeem products in Brazil since 2008.

The ESTeem 195Eg and 195Eg-lp modems were designed for the Industrial, Public Safety, and Federal marketsoperating in the 2.4 GHz frequency range with both Ethernet and Serial RS-232C interfaces. These models useSelectable Quadrature Amplitude Modulation allowing data rates up to 54 Mbps. Featuring high security 128-bitAES-CCMP encryption, ESTeem modems will meet the requirements in most municipal, public safety and federalapplications. Standard Simple Network Management Protocol (SNMP) allows critical diagnostics and networkmanagement while network functionality supports VLAN pass through and IGMP Snooping. ESTeem modemssupports multiple modes of operation through programmable selection as a Repeater or Client.

About SDC Engenharia de Sistemas Ltda.:SDC Engineering was founded in 1981. The company has been actively functioning in the domestic marketsince 1987 as a supplier of equipment for industrial automation and computing platforms in environments thatrequire high reliability and availability. Besides the quality of its products, SDC is known for its service, technicalsupport and for providing solutions with the best cost / benefit to its partners and customers.

About ESTeem Wireless Modems:Electronic Systems Technology (EST) has been a publicly held Corporation since 1984. EST was the firstcompany to develop the wireless modem and receive the United States and Canadian patents for thistechnology. ESTeem is one of the first members of the original Rockwell Automation Pyramid Solutions Programstarted in 1991 which is now called the Encompass Program.

For more details, call 509-735-9092.