| MS9104567 | SonoTrax II Fetal Doppler with 3 MHz Probe |
| MS9104658 | SonoTrax II PRO Fetal Doppler with 3 MHz Probe |
| MS9104661 | SonoTrax Basic Fetal Doppler with 3 MHz probe |
| MS9104660 | SonoTrax Basic A Fetal Doppler with 3 MHz probe |
| MS91046XX | SonoTrax PRO Fetal Doppler with 3 MHz probe |
