Profile: ERI, Inc. is a supplier of imaging equipment. We market baby dopplers, cameras, monitors, printers, recordable media and ultrasound peripherals. We also offer services for imaging equipment.The LifeDop 150 features a non-display, hand-held Doppler with superior sound quality, extended battery life & enhanced probe sensitivity, and interchangeable probes. The 2 MHz obstetrical probe is optimized for deep penetration and third trimester pregnancy. The 3 MHz obstetrical probe is optimized for early fetal heart detection and designed for use during the entire pregnancy. The EchoHeart 5 MHz transvaginal obstetrical probe is optimized for earlier fetal heart detection and ideal for retroverted and obese patients. It is used when transvaginal imaging is too costly or inconvenient. The 2 MHz Waterproof probe is for obstetrical use in water applications, and in the labor and delivery department where the probe needs to be waterproof.