How deep in the water can a Vibra-Tector 740 PI go?

Question: 

How deep in the water can a Vibra-Tector 740 PI go?

Answer: 

The Vibra-Tector 740 PI is a state of the art handheld pinpointer that communicates with pulses of vibration and light, incorporates Pulse Induction (PI) technology and is waterproof to a depth of 100 feet. 

Relevant to: Vibra-Tector 740 PI