The E2B-M12LS04-WP-B1 2M part from Omron is a rectangular-shaped connector with two metal prongs. It has a pitch of 4 mm, a lead count of 2, a rated voltage of 250 V, and a current rating of 1 A. This connector is designed for use in data communications, control, and power supply applications. It also features a waterproof design for use in hostile environments. The connector is also RoHS compliant and is UL approved.