When comparing Ace 250 vs Ace 350, the Slant community recommends Ace 350 for most people. In the question“What are the best metal detectors for beginners?” Ace 350 is ranked 3rd while Ace 250 is ranked 6th. The most important reason people chose Ace 350 is:
Ace 350 includes a pinpointing function so an external pinpointer won't be necessary.
Specs
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Pros
Pro Very light
Ace 250 only weighs 2.7 pounds.
Pro Detects up to 8" down
Pro Included pinpointing feature
Ace 350 includes a pinpointing function so an external pinpointer won't be necessary.
Pro User friendly
This device comes with an LCD screen, many buttons, and six preset search modes.
Pro Ideal for deep seeking
The Ace 350 is better for finding deep objects than other similar detectors.
Cons
Con Questionable pinpointing mode
The pinpoint mode works for some users and doesn't work for others. It may be easier to use this machine with an external pinpointer instead of using the built in function.
Con Signal delay
When moving quickly, there is lag between when the detection occurs and when the Ace 250 notifies the user.
Con False negative tendencies
The Ace 350 sometimes identifies valuable objects as junk.