Photos: Deeper · supplied retailer imagery
Fish finders · Castable sonar · Our take
Deeper PRO+ 2 Fish Finder
PRO+ 2
A clever castable sonar for anglers who want to map depth, find features and make smarter decisions without lugging a boat around.
- Three sonar frequencies with narrow, medium and wide beam options
- Depth coverage from 15 cm down to 100 m
- Up to 15 sonar scans per second with target separation as fine as 1 cm
- Rechargeable battery offers up to 9 hours’ operating time, depending on use
Make sure it’s the right one. This review covers the Deeper PRO+ 2 Fish Finder in black, supplied with its USB cable, neoprene pouch, two attachment bolts, quick guide and safety regulations.
Tackle Index Score
Tackle Index score
A versatile castable sonar with strong searching options and sensible practical features.
- Product Quality9/10
- Performance9.4/10
- Impact on Fish Catching8.8/10
- Ease of Use8.4/10
- Value for Money8.6/10
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Who it suits
Is it right for you?
Great for
- Predator anglers fishing unfamiliar waters. The different beam options help you search broad areas, then focus on depth changes and likely ambush zones.
- Carp and coarse anglers mapping swims from the bank. You can check depths, contours and features without taking a boat out or spending ages plumbing every inch.
Maybe skip if
- Anglers wanting a totally automatic fish-finding answer. The unit gives you useful sonar information, but you still need to read it sensibly and match it with what’s happening on the water.
- Anyone fishing very snaggy, cramped or weed-choked swims. Casting and retrieving a sonar needs room, and there’s always a risk of adding a bit of faff around obstructions.
The lowdown
Introducing the Deeper PRO+ 2 Fish Finder
A clever castable sonar for anglers who want to map depth, find features and make smarter decisions without lugging a boat around.
- Three sonar frequencies with narrow, medium and wide beam options
- Depth coverage from 15 cm down to 100 m
- Up to 15 sonar scans per second with target separation as fine as 1 cm
- Rechargeable battery offers up to 9 hours’ operating time, depending on use
Quick verdict
Verdict
The Deeper PRO+ 2 is a cracking bit of kit for building a picture of what’s going on under the surface. Three sonar frequencies, a wide depth range and a strong Wi-Fi connection give you plenty to work with from the bank.
It won’t put fish in the net by itself, and you’ll need to spend a bit of time learning how to read the screen. Get your head around it, though, and it can take a lot of guesswork out of choosing a spot, finding bars and checking those tempting margins.
A versatile castable sonar with strong searching options and sensible practical features.
- Product Quality
- 9/10
- Performance
- 9.4/10
- Impact on Fish Catching
- 8.8/10
- Ease of Use
- 8.4/10
- Value for Money
- 8.6/10
The ABS enclosure, titanium inserts, neoprene pouch and well-rounded feature set feel properly suited to regular bank use.
Three frequencies, up to 15 scans per second and a 15 cm to 100 m depth range give it impressive searching flexibility.
It can reveal depth changes and useful features, helping you make sharper choices, but it still relies on your watercraft and presentation.
The castable format is convenient, though interpreting sonar returns and retrieving it sensibly takes a bit of practice.
It offers serious mapping and sonar versatility without needing a boat, making the feature set appealing for anglers who will use it regularly.
Head to head
How it stacks up
Side by side with the closest kit we've reviewed. This updates as we add more reviews.
Top scorer
Scores are our own, out of 10. Best in each row is in green. Prices change, so check the latest before you buy.
The full rundown
Everything you'll want to know about the Deeper PRO+ 2 Fish Finder
There’s a lot to be said for keeping things simple on the bank. Pick a likely area, get the rods out and wait for the fish to show you the money. But when you’re faced with a new lake, a featureless-looking reservoir or a swim where the depth is anyone’s guess, a bit more information can be a proper edge. That’s where the Deeper PRO+ 2 comes in.
This is a castable fish finder, so you’re not tied to a boat or a bulky boat-mounted unit. Chuck the sonar out, bring it back at a steady pace and let it build a picture of what’s happening beneath the surface. It’s a neat way to investigate water you’d otherwise have to plumb, lead around or simply gamble on.
The PRO+ 2 uses three sonar frequencies. The 675 kHz narrow beam is the precision option, with a tight 7° beam angle and target separation down to 1 cm. That’s the one to reach for when you’re trying to inspect a specific drop-off, bar or little patch you’ve already found.
The 240 kHz medium beam opens things up with a 20° angle, while the 100 kHz wide beam covers a much broader 47° area. That makes the unit more versatile than a single-beam gadget. You can scan broadly first, then switch to a narrower view when something catches your eye. Less blind chucking, more proper homework.
Depth coverage runs from just 15 cm right down to 100 m. You’re unlikely to need the deepest end of that range on most carp or predator venues, obviously, but the useful bit is the flexibility. It can look at shallow margins, mid-water shelves and deeper holes without making you swap kit.
A scan rate of up to 15 scans per second should give you a decent flow of information as the unit moves through the swim. The trick is not to belt it back like you’re winding in a snagged rig. A controlled retrieve gives the sonar more chance to show changes in depth, weed and bottom shape clearly on your compatible phone or tablet.
The Wi-Fi connection is rated stable up to 100 m, which is plenty of reach for most bank situations. That means you can put the sonar towards a far margin or across a big section of open water while keeping the display with you. Handy stuff when the best-looking area is nowhere near the rod tips.
Battery life is quoted at up to 9 hours, depending on usage, and charging is fairly brisk. It reaches 80% in around 45 minutes and 100% in roughly 75 minutes. That’s reassuring for a full day on the bank, although you’ll still want to arrive with it charged rather than discovering it’s flat just as the wind gets up.
The black ABS enclosure with titanium inserts is made for a life involving casts, retrieves and tackle-bag treatment. You get the PRO+ 2, USB cable, neoprene pouch, two attachment bolts, a quick guide and safety regulations in the box. There’s no need for a massive setup operation, but do take a minute to understand the attachment points and the screen before you start launching it into the drink.
Used sensibly, this is a tool for making better decisions. It can help you find depth changes and features, but it won’t replace watching the water, reading the conditions or putting a bait in the right place at the right time. For anglers who enjoy that detective work, it’s a pretty cracking bit of kit.
Specifications
The nuts and bolts
- Sonar frequencies
- 675 kHz narrow, 240 kHz medium and 100 kHz wide
- Beam angles
- 7° narrow, 20° medium and 47° wide
- Depth range
- 15 cm to 100 m
- Target separation
- 1 cm with the narrow beam; 2.4 cm with medium and wide beams
- Battery
- Rechargeable 3.7 V, 950 mAh Li-ion; up to 9 hours depending on use
- Connection and compatibility
- Wi-Fi up to 100 m; iOS 13.0+ and Android 6.0+
Specs checked with Deeper, Oct 2026.
Spot a model or spec change?
Our take
The big angle
This is best seen as a watercraft tool rather than a magic fish detector. Cast it out, retrieve it steadily, compare different areas and use the information alongside the usual clues: showing fish, wind, weed, depth changes and the odd bubbling patch.
For predator anglers, it’s especially handy when you’re trying to understand a new venue or locate depth changes before putting a lure or bait in the water. Coarse and carp anglers can also use it to map swims, find plateaux and check the bottom without relying purely on marker work.
Closer look
A compact sonar with three ways to search
The PRO+ 2 gives you narrow, medium and wide sonar beams rather than forcing you into one fixed view. The narrow 7° beam is the scalpel, useful for checking a tight feature or separating targets closely. The medium 20° beam is a sensible all-rounder, while the 47° wide beam helps sweep a bigger area when you’re still working out where the interesting water is.
Depth coverage from 15 cm to 100 m makes it suitable for everything from shallow margin work to serious reservoir depths. With up to 15 scans per second, you can build a useful picture while retrieving the unit steadily. Target separation is quoted at 1 cm on the narrow beam and 2.4 cm on the medium and wide beams, giving the focused setting a real job rather than just looking good on the box.
Worth knowing. A fish finder shows information; it doesn’t make the decision for you. Read the returns alongside depth, weed, bottom changes and fish activity. A lovely-looking screen is no substitute for choosing a sensible swim and presenting your rig properly.
Who it suits
A handy edge for exploring new water
Predator anglers should get plenty from the PRO+ 2 when searching unfamiliar water. The wide beam can help scan an area, while the narrow beam lets you investigate a likely depth change or ambush feature more closely. It’s useful before committing to a lure route or settling on a baited line.
Carp and coarse anglers can use it for the same sort of detective work. Check the margins, compare the near bank with the far side and look for changes that might not be obvious from above. It can complement marker floats and plumbing, especially when you want a quick look without disturbing a whole swim.
It’s less appealing if you want to cast once and be handed the perfect spot. There’s a learning curve, and retrieving any castable sonar around weed, snags or crowded swims needs care. Keep the retrieve smooth, avoid daft hero chucks and treat it as a tool for building confidence rather than a guaranteed bite button.
FAQs in full
The practical bits before you buy
The unit connects over Wi-Fi, with a stable range rated up to 100 m. It works with iOS 13.0 or later and Android 6.0 or later, so check the phone or tablet you plan to use before heading down the lake. Keeping the display charged is just as important as charging the sonar itself.
The rechargeable 3.7 V, 950 mAh Li-ion battery offers up to 9 hours, although actual running time depends on use. Charging reaches 80% in about 45 minutes and full charge in roughly 75 minutes. That’s handy when you’ve forgotten to top it up before a quick evening session.
Worth knowing. The PRO+ 2 operates from -20°C to 40°C, so it’s built for a wide range of fishing conditions. Still, keep the pouch handy, look after the charging cable and give yourself a sensible amount of space when casting and retrieving it.
On paper
Pros & cons
What we like
- Three beam choices make it useful for both pinpointing features and getting a broader picture
- Strong Wi-Fi connection is rated stable up to 100 m
- Compact castable design is far less faff than taking a boat or heavy boat-mounted finder
- Fast charging gets it to 80% in around 45 minutes
Worth knowing
- You’ll need to learn how to interpret the sonar screen properly; it isn’t a one-cast fish-finding shortcut
- Casting and retrieving a sonar repeatedly can be awkward in tight swims or snaggy margins
- Battery life varies with use, so long mapping sessions need a bit of planning
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Your questions answered
What anglers want to know
The stuff you’d ask your mate on the next peg. Straight answers, no waffle.
01Can the Deeper PRO+ 2 be used for carp fishing?
Can the Deeper PRO+ 2 be used for carp fishing?
Yes. It can help you understand depth changes, bars, holes and other features from the bank. Use it as part of your watercraft rather than relying on it as the sole reason to fish a spot.
02How far does the Deeper PRO+ 2 connect?
How far does the Deeper PRO+ 2 connect?
Its Wi-Fi connection is designed to remain stable up to 100 m, giving you useful scope when searching a large lake or chucking towards the far side of a swim.
03How long does the battery last?
How long does the battery last?
The rechargeable 3.7 V, 950 mAh Li-ion battery offers up to 9 hours, depending on how you use the unit. It charges to around 80% in 45 minutes and reaches 100% in about 75 minutes.
What anglers say
The word from the bank
Our read: verdict. The strongest reasons to choose it are three beam choices make it useful for both pinpointing features and getting a broader picture and strong wi-fi connection is rated stable up to 100 m; the main trade-off is you’ll need to learn how to interpret the sonar screen properly; it isn’t a one-cast fish-finding shortcut.
Our take on the feedback
Why it appeals
Checked Sept '26 — “Three beam choices make it useful for both pinpointing features and getting a broader picture”
Best fit
Checked Sept '26 — “Predator anglers fishing unfamiliar waters: The different beam options help you search broad areas, then focus on depth changes and likely ambush zones.”
Worth knowing
Checked Sept '26 — “You’ll need to learn how to interpret the sonar screen properly; it isn’t a one-cast fish-finding shortcut”
Tackle Index’s take from the product details and fishing fit we checked. We haven’t found enough independent public feedback to call this an angler consensus yet.
Angler score
What our readers rate Deeper PRO+ 2 Fish Finder
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Owner reports
Own this? Help the next angler.
Quick multiple-choice reports from people who say they own the Deeper PRO+ 2 Fish Finder. Not verified purchases, and kept separate from our score.
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