JW Fishers Proton 4 Underwater Magnetometer Include::300 ft. Cable It is also compatible with

It is also compatible with other brands

providing up to 75 hours of battery life

Adjustable shaft

The F75 includes a detailed operating manual

Variable Tone Breakpoint

JW Fishers Proton 4 Underwater Magnetometer Include::300 ft. Cable It is also compatible withJW Fishers Proton 4 Underwater Magnetometer The PROTON 4 is a fourth generation proton magnetometer from JW Fishers. It is a top performing microprocessor driven marine magnetometer detection system. With a one gamma sensitivity, it has the maximum usable sensitivity for a towed magnetometer. A two second cycle time gives a strong return signal and is fast enough to detect even small iron steel targets. The PROTON 4 features a triaxial noise