Photos: Delkim
Bite Alarm Buying Guide · Our take
Delkim Txi-D v2
Single alarm, sold on its own or as part of a 2+1 or 3+1 presentation set
Delkim's flagship digital alarm gets another once-over, with multi-coloured LEDs, a digital radio link and proper weatherproofing. Here's what the maker says it does and who it's actually for.
- Vibration-sensing detection, not just a roller wheel
- Multi-coloured LEDs with adjustable brightness
- 32 selectable tones plus adjustable volume and response
- Digital radio transmitter built in, paired to the Rx-D v2 receiver
- 100% weatherproof synthetic rubber coating
- Runs off one 9V PP3 battery
Make sure it’s the right one. This review covers the standalone Txi-D v2 digital bite alarm. Delkim also sell it bundled with the Rx-D v2 receiver in 2+1 and 3+1 presentation sets, and there's an older, non-v2 Txi-D still floating around on the second-hand market, which is a different unit with fewer features.
Tackle Index Score
Tackle Index score
A flagship alarm with proper vibration sensing and loads of ways to tune it, at a genuine premium price.
- Product Quality9.9/10
- Performance9.9/10
- Impact on Fish Catching8.8/10
- Ease of Use7.7/10
- Value for Money6.6/10
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Who it suits
Is it right for you?
Great for
- Carp anglers who fish zigs, margins or at distance. Vibration sensing is built to flag up subtler takes that a basic roller wheel might miss.
- Anglers upgrading a full set of three alarms at once. The factory-paired radio link and shared tones make a matched trio easy to run together.
- Session anglers who want full control over sensitivity. Adjustable RESPONSE and BEEP SPEED let you tune the alarm rather than live with one setting.
Maybe skip if
- Anglers on a tight budget. This sits at the top of Delkim's range and is priced accordingly.
- Casual match or feeder anglers. Most of the vibration-sensing and radio features are built around static carp and specialist tactics.
The lowdown
Introducing the Delkim Txi-D v2
Delkim's flagship digital alarm gets another once-over, with multi-coloured LEDs, a digital radio link and proper weatherproofing. Here's what the maker says it does and who it's actually for.
- Vibration-sensing detection, not just a roller wheel
- Multi-coloured LEDs with adjustable brightness
- 32 selectable tones plus adjustable volume and response
- Digital radio transmitter built in, paired to the Rx-D v2 receiver
- 100% weatherproof synthetic rubber coating
Quick verdict
A proper flagship alarm, built for anglers who want every scrap of information
The Txi-D v2 is Delkim's top-of-the-range alarm, and on paper it reads like a unit built for the angler who wants to know everything about what's happening at the business end of their line. Vibration sensing, loads of customisable tones, multi-coloured LEDs and proper weatherproofing all point at a serious, do-it-all alarm rather than a basic bite-and-beep box.
It isn't a budget buy, and you don't need all these features for a quiet afternoon on the local commercial. But if you fish zigs, margins, at range or on big complicated waters where every bit of extra information matters, this is the kind of alarm that's designed with exactly that in mind.
A flagship alarm with proper vibration sensing and loads of ways to tune it, at a genuine premium price.
- Product Quality
- 9.9/10
- Performance
- 9.9/10
- Impact on Fish Catching
- 8.8/10
- Ease of Use
- 7.7/10
- Value for Money
- 6.6/10
Built by a brand with decades of alarm-making pedigree, with a proper weatherproof synthetic rubber coating.
Vibration sensing is designed to pick up subtler takes than a basic roller wheel ever could.
Catching more fish often comes down to not missing bites, and that extra sensitivity is built to help with exactly that.
Loads of settings to fiddle with, which is great once you know your way round them but a bit much for a total beginner.
You're paying top dollar here, and you'll want the matching receiver too to get the full benefit.
Head to head
Bite alarms compared
The two big names in premium bite alarms.
Delkim
Delkim Txi-D v2 (this one)
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 Delkim Txi-D v2
Right then, let's have a proper look at the Delkim Txi-D v2. If you've spent any time on a carp syndicate or a well-stocked day ticket water, you'll have heard the name Delkim mentioned in reverent tones by anglers who've been doing this a lot longer than most. This is their flagship alarm, and on paper it reads like a unit built for anglers who want every scrap of bite information they can get, not just a beep when a fish legs it with the rig.
The core of the whole thing is Delkim's vibration sensing technology. Where a lot of cheaper alarms rely on a roller wheel that only wakes up once line is actually being pulled across it, Delkim's sensor is designed to also pick up subtler vibration and movement transmitted down the line. In practice, that should mean a fish mouthing a bait, lifting it gently, or having a tentative nudge shows up as information on the alarm, rather than disappearing completely until it's a proper take.
Who's this actually for? Based on the spec sheet, it's clearly aimed at the serious end of carp and specialist fishing. Think anglers working zig rigs in open water, fishing the margins at range, or targeting big, pressured lakes where every last bit of detection advantage matters. If you're doing a quiet session on a stocked commercial with eager fish queuing up, you probably don't need this level of kit. But on a hard water where bites are rare and finicky, that extra sensitivity could be the difference between banking a fish and never knowing it was there.
We've all had it happen: a slack line, a dropped indicator, and you only find out afterwards that something had been having a proper look at your bait. That's the exact scenario vibration sensing is built to combat. Instead of waiting for a definite pull, the alarm is designed to flag up that earlier, more subtle contact, giving you a chance to react before the fish has worked out something's not right.
Looking through what Delkim list on the spec sheet, there's a serious amount of customisation on offer. Thirty-two selectable tones, adjustable volume, multi-coloured LEDs with eight brightness levels and separate day and night modes. The RESPONSE control lets you dial sensitivity up or down to suit conditions, and there's a BEEP SPEED setting alongside it specifically designed to keep the alarm's reaction feeling consistent as you adjust response. It's clearly built for anglers who like to tune their kit rather than leave it on one setting forever.
There's also a proper focus on reliability and security. Delkim state the unit is built with a synthetic rubber coating that's 100% weatherproof, which matters when you're leaving kit out on a rod pod through a full UK winter. Features like anti-theft security and stealth mode point towards anglers fishing busier, higher-footfall waters where keeping tabs on your gear is as much a concern as catching the fish in front of you.
It's worth being clear-eyed about what you're paying for here, though. This sits right at the top of Delkim's range, and it isn't a casual buy. It also runs on a single 9V PP3 battery, which is a different format to the AA cells plenty of anglers are used to stocking up on, so that's worth factoring into your kit bag. And to get the full benefit of the digital radio link and factory pairing, you'll want the matching Rx-D v2 receiver too, which adds to the overall cost of building a full set.
So, is the Txi-D v2 worth the investment? Based on Delkim's own specs, it's a genuinely well thought-out flagship alarm built around real detection advantages rather than just flashy extras. In the rest of this review we'll run through the full spec sheet, look at how it stacks up for different styles of fishing, and go through a checklist to help you decide if it's the right alarm for your rods this season.
Specifications
The nuts and bolts
- Detection method
- Vibration sensing, piezoelectric sensor
- From the maker
- LEDs
- Multi coloured, 8 brightness levels, day/night mode
- From the maker
- Tones
- 32 selectable tones, adjustable volume
- From the maker
- Radio
- Integrated digital radio transmitter, factory paired to Rx-D v2
- From the maker
- Weatherproofing
- Synthetic rubber coating, described by Delkim as 100% weatherproof
- From the maker
- Power
- 1 x 9V PP3 battery
- From the maker
- Extra features
- Mute, stealth mode, night marking, anti-theft security, auto power down
- From the maker
- Warranty
- 4 year warranty (3 years on some listings, register for the extra year)
- From the maker
Specs checked with Delkim, Oct 2026.
Spot a model or spec change?
Our take
Vibration sensing over a roller wheel
Loads of cheaper alarms use a simple roller wheel that only reacts once the line is actually moving. Delkim's vibration sensing is built to pick up more subtle signals too, meaning a finicky take or a fish mouthing the bait can show up as information on the alarm rather than nothing at all.
That extra sensitivity is adjustable via the RESPONSE control, and there's a BEEP SPEED setting to help the alarm keep pace as you wind response up or down. It's the sort of control a confident angler will want to fine-tune to their rig, venue and conditions, rather than leaving on a single factory setting all season.
What you're actually buying
Thirty-plus years of know-how in one box
Delkim's pitch is simple: decades of experience building vibration-sensing alarms, folded into a digital platform. The Txi-D v2 keeps the piezoelectric vibration sensor at its core, which is the bit that separates Delkim's alarms from a huge chunk of the market running on simpler roller wheels.
- Detection
- Piezoelectric vibration sensor
- LEDs
- Multi-coloured, 8 brightness levels
- Radio
- Integrated digital transmitter
- Build
- Synthetic rubber weatherproof coating
Worth checking before you buy. Delkim sell the Txi-D v2 alone and inside bundled presentation sets with the Rx-D v2 receiver and Snag Bars. Make sure the listing you're looking at matches what you actually need.
On the bank
Response, beep speed and all the extras
Two push buttons handle most of the day-to-day adjustment, while physical RESPONSE and VOLUME dials give quick tactile control without fiddling through menus in the dark. BEEP SPEED is the clever bit: as you wind sensitivity up, this setting keeps the alarm's reaction feeling consistent rather than becoming twitchy.
| Feature | Setting | What it does |
|---|---|---|
| Response | Controls sensitivity to line movement and vibration | |
| Beep speed | 5 levels, keeps reaction consistent as response changes | |
| Volume | Adjustable speaker level, up to a stated 100dB | |
| Mute | Silences the alarm speaker for 5 minutes at a time |
Extras like stealth mode, night marking and anti-theft security are aimed at anglers who fish busy or higher-risk venues, where keeping an alarm's presence low-key or protected matters as much as the detection itself.
Before you order
Getting the right set-up
Four things to check first
Great if you’re…
- Anglers fishing pressured, well-stocked waters. Extra detection sensitivity can help pick up finicky bites that cost other anglers fish.
- Anyone upgrading a whole set at once. Buying a matched presentation set avoids any pairing hassle between mismatched units.
Maybe skip if you’re…
- Beginners building their first basic set-up. A simpler, cheaper alarm will do the job while you learn the ropes.
On paper
Pros & cons
What we like
- Vibration sensing gives more detection information than a basic roller-wheel alarm
- Loads of tones, volume and LED colour options to personalise your set
- Built-in digital radio for a clean, interference-resistant link to the receiver
- Weatherproof coating built for year-round bankside abuse
- Backed by a long warranty from a brand with a strong track record
Worth knowing
- A genuine premium price, a long way up from entry-level alarms
- Runs on a single PP3 battery, a different format to the AA cells some anglers prefer to carry spares of
- Needs the matching Rx-D v2 receiver to get the most from its features, which adds to the overall cost
Want one?
Add it to your Wanted list or join a Group Buy — shops see anonymous totals only.
Your questions answered
What anglers want to know
The stuff you’d ask your mate on the next peg. Straight answers, no waffle.
01What's the actual difference between vibration sensing and a roller wheel?
Vibration sensing can pick up subtler movement, not just line being pulled.
What's the actual difference between vibration sensing and a roller wheel?
Vibration sensing can pick up subtler movement, not just line being pulled.
A roller-wheel alarm only triggers once line is physically moving across the wheel. Delkim's vibration sensor is built to also pick up smaller movements and vibration transmitted down the line, so a fish mouthing a bait or lifting a bobbin slightly can register on the alarm, not just a full-on take.
02Do I need the Rx-D v2 receiver as well?
You don't strictly need one, but it unlocks the full feature set.
Do I need the Rx-D v2 receiver as well?
You don't strictly need one, but it unlocks the full feature set.
The Txi-D v2 alarm will beep on its own at the rod, but the Rx-D v2 receiver is where you get the portable, multi-rod listening post that most carp anglers actually want in the bivvy. Delkim sell them separately or as paired presentation sets.
03What battery does it use and how long does it last?
A single 9V PP3 battery, with low-battery warning built in.
What battery does it use and how long does it last?
A single 9V PP3 battery, with low-battery warning built in.
Delkim specify one 9V PP3 type battery per alarm. The unit includes a low-battery indicator and auto power down to help eke out battery life, though Delkim don't publish an exact number of hours on the standard listing.
04Will it work with my existing Delkim gear?
It's designed to be backwards compatible with most of Delkim's range.
Will it work with my existing Delkim gear?
It's designed to be backwards compatible with most of Delkim's range.
Delkim state the Txi-D v2 is compatible with the older Rx-D receiver as well as the newer Rx-D v2, and also works with Delkim's Safe-D v.2 and D-Lok v.2 security accessories and other visual indication systems.
What anglers say
The word from the bank
Our read: a proper flagship alarm, built for anglers who want every scrap of information. The strongest reasons to choose it are vibration sensing gives more detection information than a basic roller-wheel alarm and loads of tones, volume and led colour options to personalise your set; the main trade-off is a genuine premium price, a long way up from entry-level alarms.
Our take on the feedback
Why it appeals
Checked Sept '26 — “Vibration sensing gives more detection information than a basic roller-wheel alarm”
Best fit
Checked Sept '26 — “Carp anglers who fish zigs, margins or at distance: Vibration sensing is built to flag up subtler takes that a basic roller wheel might miss.”
Worth knowing
Checked Sept '26 — “A genuine premium price, a long way up from entry-level alarms”
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 Delkim Txi-D v2
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Owner reports
Own this? Help the next angler.
Quick multiple-choice reports from people who say they own the Delkim Txi-D v2. Not verified purchases, and kept separate from our score.
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Alternatives & go-withs
