When comparing Teknetics D4000 vs Fisher F4, the Slant community recommends Fisher F4 for most people. In the question“What are the best metal detectors for beginners?” Fisher F4 is ranked 2nd while Teknetics D4000 is ranked 7th. The most important reason people chose Fisher F4 is:
The F4 has an 11 category graphic ID, four tone audio identification, and a 0-99 numerical identifier.
Specs
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Pros
Pro Accurate pinpoint feature
The D4000's pinpoint feature outperforms similar detectors.
Pro Great battery life
The D4000 runs about 25 hours on a 9-v battery.
Pro Accurate object identification
The F4 has an 11 category graphic ID, four tone audio identification, and a 0-99 numerical identifier.
Pro Advanced coil
The F4 is equipped with an elliptical 11-inch DD coil.
Cons
Con High rate of false positives
This device tends to give a high amount of false readings.
Con Uncomfortable
The armrest padding is way too hard, and tends to get uncomfortable after a long period of use.