DetectorPro UniProbe Headphones/Pulse Induction Probe The UniProbe is a combination of high-quality headphones and a deep-seeking pulse induction probe. Is common on coin-size targets. Most of the time, when you open your plug, you'll be able to hear the target right away. Instant switching between hearing your metal detector and probe. No probe buttons to push, waiting for your probe to go ON, or moving your headphone to the side so you can hear your probe.Simply flip the toggle switch on your headset to hear only your probe and switch it back to hear only your metal detector. No one will hear your probe beeping. Pulse induction circuitry allows you to hunt in harsh conditions, such as heavily mineralized dirt, where VLF probes have difficulty. The UniProbe is actually a small PI motion metal detector that is constantly re-tuning. The probe and cable are 100% waterproof and can be fully inserted in salt or fresh water. Compatible with CTX 3030 Metal Detector. This item is in the category "Business & Industrial\Test, Measurement & Inspection\Test Meters & Detectors\Metal Detector Accessories". The seller is "serious_detecting" and is located in this country: US. This item can be shipped to United States.