Fisher Pinpointers: F-Pulse Waterproof Pinpointer

The Fisher F-Pulse is a pulse induction pinpointer that finds the exact spot of a target in the hole once your detector has found it. First Texas rates it submersible to 6 feet for up to 1 hour, with three sensitivity levels, proportional audio and vibration or vibrate-only alerts, an LED flashlight and 16 frequency-shift channels to keep it clear of your detector. It runs on two AA batteries, rated for about 25 hours on alkaline, 50 hours on lithium and 15 hours on NiMH, weighs about 0.4 lb (180 g) and carries a 2-year warranty. Because it is a standalone pinpointer, it works alongside any brand of detector. Our Fisher pinpointer collection has the F-Pulse with its belt holster.

The Fisher F-Pulse Pinpointer

The F-Pulse is Fisher's pinpointer, made in the USA by First Texas Products. It uses pulse induction, where most pinpointers use VLF, and it detects along both the tip and the shaft, so you can scrape the wall of the hole as well as probe the bottom. As you close on a target, the beep and vibration speed up. Its single button handles power, retune, sensitivity, the LED and frequency shift.

First Texas rates the F-Pulse submersible to 6 feet for up to 1 hour. It has three sensitivity levels (Low, Medium and High, with Medium as the default), each with beep and vibrate or vibrate only, and an LED flashlight that you can switch on or off. It runs on two AA batteries: about 25 hours on alkaline, about 50 hours on lithium and about 15 hours on rechargeable NiMH. It weighs about 0.4 lb (180 g) and carries a 2-year manufacturer warranty. It does not discriminate or show a target ID, and its volume is fixed, so the decision to dig stays with your detector.

F-Pulse vs. Garrett Pro-Pointer AT: Which Should You Buy?

The question is where you dig. On salt beaches, black sand and highly mineralized ground, we recommend the F-Pulse: First Texas designed it for mineralized soil and underwater use, it has manual ground cancel for that ground, and its 16 frequency-shift channels let you move it away from a detector running beside it. It also runs on AA batteries rather than a 9V.

The Garrett Pro-Pointer AT is the deeper choice. Garrett rates it waterproof to 20 ft (6 m), IP68, against the F-Pulse's 6 feet for 1 hour, so if you wade past chest depth or snorkel, the Garrett goes further. For dry parks, yards and fields, either one does the job.

Fisher F-Pulse, Best For:

  • Wet salt sand and black sand beaches
  • Gold prospecting in mineralized ground
  • Hunters who want AA batteries rather than a 9V
  • Hunting next to another detector, with frequency shift to avoid crosstalk

Garrett Pro-Pointer AT, Best For:

  • Wading and snorkeling deeper than 6 feet
  • Hunters who want a 20 ft (6 m) IP68 rating
  • Hunters who want Garrett's 3-year warranty

Features That Matter in the Hole

Ground cancel is the setting to learn first. Fisher's manual gives two methods. For salt water and most mineralization, switch the F-Pulse on, touch the tip to the soil or submerge it, and quick-press the button; a beep confirms it. For extreme mineralization, switch it off, touch the tip to the soil away from any target, and quick-press to switch it on. A quick press away from metal also retunes it if it loses sensitivity or starts alerting on its own. Fisher says not to switch it on or retune it near metal, which overloads it.

The lost pinpointer alarm pays for itself the first time you leave the F-Pulse in a hole. After 10 minutes with no button press it enters Lost Mode: the LED flashes and it beeps every 15 seconds. If nobody picks it up, after 30 minutes it switches itself off completely, which saves the batteries. Frequency shift has 16 channels, so if you hear crosstalk with your detector, step the F-Pulse to another channel.

Waterproofing and Care

Keep the F-Pulse within its rating: submerging it deeper than 6 feet or for longer than 1 hour voids the warranty, according to Fisher's manual. Waterproofing depends on a tight seal at the battery cap, so keep the O-ring clean and lubricated. Fisher also says not to use zinc-carbon or heavy-duty batteries. After salt water we recommend a rinse in fresh water before you put it away.

Which Fisher Detectors the F-Pulse Suits

On land, the F-Pulse pairs with any Fisher detector, from the F22 and F75 to the Gold Bug Pro and Gold Bug 2, and with any other brand. For beach work it matches the Impulse AQ, which First Texas rates waterproof to about 3 ft (1 m). The 1280X and CZ-21 are submersible to 250 ft (76 m), well past the F-Pulse's 6 feet, so for diving with them choose a pinpointer rated for the depth you dive from our pinpointers collection.

Fisher F-Pulse vs. Garrett Pro-Pointer AT Comparison

FeatureFisher F-PulseGarrett Pro-Pointer AT
TechnologyPulse induction11.5 kHz
WaterproofSubmersible to 6 feet for 1 hour20 ft (6 m), IP68
Sensitivity3 levels3 levels
Ground HandlingManual ground cancel, 2 methodsFast Retune, quick press
Frequency Shift16 channelsNot listed by Garrett
Alerts and LightAudio and vibrate or vibrate only, LEDAudio and vibrate or vibrate only, LED
Battery2 x AA, about 25 hours alkaline9V, up to 30 hours alkaline
WeightAbout 0.4 lb (180 g)6.5 oz (0.2 kg)
Warranty2 years3 years

For more choices, read our guide to pinpointers for gold prospecting, which compares the F-Pulse with VLF pinpointers.

Why Buy Your Fisher F-Pulse from Serious Detecting?

  • Free Shipping on Orders Over $99: Orders over $99 ship at no extra cost across the continental US.
  • Authorized Fisher Dealer: Showroom in Ypsilanti, Michigan, full 2-year manufacturer warranty and product registration support.
  • Help Before and After You Buy: Our staff answer setup, ground cancel and F-Pulse questions by phone or email.

Customer Questions & Expert Answers

Get real answers from outdoor explorers and our product experts. Browse questions about performance, features, and setup —or ask your own to make sure this gear fits your next adventure.

Is the Fisher F-Pulse waterproof?

Yes, the Fisher F-Pulse is waterproof: First Texas rates it submersible to 6 feet for up to 1 hour, which covers wet sand, the surf line, wading and rain. Fisher's manual says that submerging it deeper than 6 feet or for longer than 1 hour voids the warranty, and that the battery cap O-ring must be kept clean and lubricated for a tight seal. After salt water we recommend a rinse in fresh water. If you dive or wade deeper than 6 feet, choose a deeper-rated pinpointer from our pinpointers collection.

Answered by John W. · June 2026

What makes a pulse induction pinpointer like the Fisher F-Pulse different?

A pulse induction pinpointer like the Fisher F-Pulse is different because it uses pulse induction rather than the VLF design most pinpointers use, and First Texas designed it for mineralized soil and underwater use. It has a manual ground cancel: for salt water and most mineralization, touch the tip to the soil or submerge it and quick-press the button. It does not discriminate or show a target ID, so the decision to dig stays with your detector. Our pinpointer buying guide compares pulse induction and VLF models.

Answered by Richard T. · June 2026

Which pinpointer should I use with a Fisher 1280X or CZ-21?

With a Fisher 1280X or CZ-21, choose your pinpointer by the depth you hunt. Both detectors are submersible to 250 ft (76 m), while the Fisher F-Pulse is rated to 6 feet for up to 1 hour. For the surf line, wading and shallow water, the F-Pulse matches them, and its 16 frequency-shift channels keep it clear of the detector. For diving deeper than 6 feet, choose a pinpointer rated for that depth from our pinpointers collection. See the 1280X and CZ-21.

Answered by Dan P. · June 2026

Does the Fisher F-Pulse have a lost pinpointer alarm?

Yes, the Fisher F-Pulse has a lost pinpointer alarm. According to Fisher's manual, after 10 minutes with no button press it enters Lost Mode: the LED flashes and it beeps every 15 seconds so you can find it. If it is not picked up, after 30 minutes it switches itself off completely, which saves the two AA batteries.

Answered by Richard T. · October 2026

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