Fisher F75+ Metal Detector Liquid Leak Detector it is called the MI-4

it is called the MI-4 pin point probe

all the legendary features you've come to know and trust from the F75

5” x 2” x 1

allowing users to visualize underground structures

Power Box (Sending Unit)

Fisher F75+ Metal Detector Liquid Leak Detector it is called the MI-4With Boost Mode Best Price Guaranteed Price Match Free US Shipping 5 Year Manufacturer's Limited Warranty Made in the USA The most versatile high performance detector ever made! The industry's premier relic hunting and ultimate multi purpose metal detector. The F75+ is an American Made, high performance, multi purpose professional metal detector. The F75+was built off the proven F75 platform, all the legendary features you've come to know and trust