Recently, the company added two new customers for early 2001 installations. Publix Supermarkets has agreed to install a pilot ESL system in the first quarter of 2001, and Ellison Enterprises, based in Little Rock, Arkansas has agreed to install three stores anticipated to be in the first quarter of 2001. We are pleased that our existing customers continue to install our ShelfNet system. ERS continues to keep its operating expenses in line with current revenue levels while growing its installed base of ShelfNet systems. We believe the continued investment by our existing customers combined with our acquisition of new customers is a strong indication that we are well positioned to pursue and expand the ESL opportunity.
PSI is one of the leading suppliers of self checkout retailing systems.
PSI recently introduced its next generation total payment ACM self checkout system, which allows shoppers to scan any size order and, without the need for a cashier, pay with cash, credit cards or debit cards using a device similar to an ATM machine. The market acceptance for self checkout continues to accelerate with an estimated ten of the top ten supermarkets either trialing or rolling out self checkout solutions. ERS is a leading developer and supplier of electronic shelf labeling systems designed to improve retailer profitability. The ERS ShelfNet system is designed to assist retailers in cost savings and pricing accuracy by using a wireless network to link a store's central computer both to its checkout scanner and to the ESLs that display pricing information at the shelf edge. This provides price integrity between the shelf edge and the POS scanners.