Electronic Systems Technology, Inc. Announces Return of MDC Systems Manager.

KENNEWICK, Wash. -- Electronic Systems Technology, Inc. (EST) (OTC: ELST), manufacturer of the ESTeem(TM) product line of narrow band licensed, Ethernet Licensed, and Unlicensed wireless modems, announced today the return of Robert Croft as manager of MDC Systems. Mr. Croft left EST in August of 2006 to pursue an opportunity with a local distributor of the Company. In June of 2007, he made the decision to return to EST. "I am very excited to return to work for such a great company as Electronic Systems Technology," said Croft.

The ESTeem MDC system offers public safety agencies an affordable solution for their mobile data network requirements. The ESTeem MDC system provides agencies an alternative to existing proprietary data networks. The ESTeem MDC system allows agencies to establish a private Radio Area Network (RAN), free of monthly service fees. The ESTeem MDC System product line offers the customer choices in the narrow band licensed 150 to 174 MHz and 450 to 470 MHz frequencies that operate at data rates of 19,200 bps to the unlicensed 2.4 GHz high bandwidth frequencies that transmit data to 54 Mbps. For 2007 EST introduced two new radios to complement the above products to increase MDCS market share. The first is the low cost ESTeem 195Es unlicensed 900 MHz wireless modem, and the second is the ESTeem 195Ep that operates at 4.9 GHz for the licensed Homeland Security Band.

"EST is actively pursuing market opportunities for public safety wireless communications networks with the ESTeem Mobile Data Computer (MDC) System," states Tom Kirchner, president of EST, "Robert Croft is a valuable member of our sales team and we are happy to have him back to help promote our new products."

Electronic Systems Technology, a publicly held corporation since 1984, was the first company to develop the wireless modem and receive the United States and Canadian patents for this technology. Contact EST Marketing for more details.