Why do I need gel at all?
Gel removes the thin layer of air between the probe and your skin so the ultrasound waves can pass through cleanly. Air is a poor conductor of these waves, so without gel the signal scatters and you hear little or nothing. The HeartBeats™ Fetal Doppler includes ultrasound gel to get you started, and our how to use page shows how to apply it.What kind of gel should I use?
Use standard water-based ultrasound gel — the same type clinics use. It is inexpensive, widely available online and at pharmacies, hypoallergenic for most people, and wipes off easily. Apply a generous amount directly to your lower abdomen for the best contact.What should I avoid?
- Lotions and creams — they transmit the signal poorly.
- Oils and petroleum jelly — they conduct badly and can degrade the probe over time.
- In a pinch, a clear water-based lubricant or aloe vera gel can work, but purpose-made ultrasound gel performs best.
Where can I buy more?
Refill bottles of water-based ultrasound gel are easy to find online and at most pharmacies, often sold in 8 oz bottles. Any clear, water-based ultrasound transmission gel will work with the HeartBeats.How do I clean up afterward?
Wipe your skin with a tissue or warm cloth, then clean the probe with a soft, slightly damp cloth and dry it. Never submerge the device — the probe is water-resistant, not waterproof. See our troubleshooting page if the signal is weak even with gel.Plenty of gel and patience are the two biggest factors in finding the heartbeat, especially before 14 weeks. A home doppler is for reassurance and bonding only and is not a substitute for prenatal care.

