All of our Sonotrax probes are waterproof and interchangable with the main unit. The 2 and 3 Mhz probes are typically used for obstetical purposes (fetal heart detection etc) while the 4 and 8 Mhz probes are used for vascular purposes.
Our Sonotrax 3 Mhz probes are available in stock and can be shipped immediately. The 2,4 and 8 Mhz probes are available by special order only and may take up to 4-6 weeks to arrive.
All probes can be securely purchased online using a credit card. We will notify you via email about the expected arrival date of any special order probes.