Photos: Delkim · supplied retailer imagery
Alarms · Digital bite indication · Our take
Delkim Txi-D Single Digital Bite Alarm
Single alarm
A compact, feature-packed digital alarm for anglers who want proper bite indication, remote security and a cracking bit of kit on the bank.
- Patented digital signal processing and vibration sensing detect line movement and vibration.
- Patented beep-speed control and 64 digital tone settings allow plenty of personalisation.
- Digital radio includes a range-test function, while the patented IMU sensor adds movement security.
- Supplied with a moulded hard case; the alarm uses a 9V PP3 battery and rechargeable batteries aren’t recommended.
Make sure it’s the right one. This review covers the Delkim Txi-D Single Digital Bite Alarm, supplied with its moulded hard case. It’s the single alarm unit rather than a receiver set.
Tackle Index Score
Tackle Index score
A premium-feeling single alarm with excellent adjustment and useful security features, held back slightly by the battery choice and high-value price bracket.
Desk-research score from specs, price and fishing fit · How we score
- Product Quality9.7/10
- Performance9.6/10
- Impact on Fish Catching9/10
- Ease of Use8.8/10
- Value for Money8.3/10
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Who it suits
Is it right for you?
Great for
- Carp anglers who like to fine-tune their setup. You can set the tone, beep speed and indication to suit your swim, your hearing and the way you fish.
- Predator and specimen anglers fishing away from the rods. The digital radio and movement security sensor add useful reassurance when you’re watching another area or sorting the kettle.
Maybe skip if
- Anglers after the cheapest possible alarm. This is feature-heavy kit, so a simple budget alarm will make more sense if you don’t need the extra control.
- Anyone who prefers rechargeable power. The Txi-D uses a 9V PP3 battery and rechargeable batteries aren’t recommended.
The lowdown
Introducing the Delkim Txi-D Single Digital Bite Alarm
A compact, feature-packed digital alarm for anglers who want proper bite indication, remote security and a cracking bit of kit on the bank.
- Patented digital signal processing and vibration sensing detect line movement and vibration.
- Patented beep-speed control and 64 digital tone settings allow plenty of personalisation.
- Digital radio includes a range-test function, while the patented IMU sensor adds movement security.
- Supplied with a moulded hard case; the alarm uses a 9V PP3 battery and rechargeable batteries aren’t recommended.
Quick verdict
A tiny alarm with serious clever stuff inside
The Delkim Txi-D packs a lot into a properly compact alarm head. Its vibration sensing, adjustable beep speed, digital radio and security movement sensor give it far more going on than a basic beep machine.
It won’t be the cheapest way onto the bank, and the 9V battery requirement may not suit everyone. But if you want dependable indication, loads of personalisation and a small alarm that’s built for proper sessions, it’s a cracking bit of kit.
A premium-feeling single alarm with excellent adjustment and useful security features, held back slightly by the battery choice and high-value price bracket.
Desk-research score from specs, price and fishing fit · How we score
- Product Quality
- 9.7/10
- Performance
- 9.6/10
- Impact on Fish Catching
- 9/10
- Ease of Use
- 8.8/10
- Value for Money
- 8.3/10
Compact construction, enhanced weather protection and a dedicated moulded hard case give it a properly premium feel.
Vibration sensing, digital signal processing and adjustable beep speed offer sharp, flexible bite indication.
Clearer control over subtle line movement can help you react to cautious bites, especially on tight lines and tricky spots.
The controls and memorised preferences are convenient, though the number of options takes a little getting used to.
It offers a lot for the money in the premium alarm bracket, but anglers wanting only basic indication may find it a touch excessive.
Head to head
How it stacks up
Side by side with the closest kit we've reviewed. This updates as we add more reviews.
Delkim
Delkim Txi-D Single Digital Bite Alarm (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 Single Digital Bite Alarm
There’s a lot to like about an alarm that doesn’t make you faff around. You want it on the buzzer bar, lined up with the rod and ready for a screaming take. The Delkim Txi-D Single Digital Bite Alarm takes that simple job and gives it a proper techy upgrade without turning the alarm head into a brick.
The first thing you notice is the size. Delkim says the Txi-D is around 30% smaller than previous Delkim alarm heads, and that compact shape is dead handy when space on the bar is tight. It measures roughly 103mm high by 38mm wide and 40mm deep, with the body itself standing 93mm high before the antenna. That keeps the whole setup neat and tidy.
At around 118g including the battery, it’s not a heavyweight lump either. The separate moulded hard case adds protection in the tackle bag and weighs 37g. That matters when you’re moving swims, chucking kit in the barrow or trying to keep expensive tackle from getting bashed about between sessions.
Under the bonnet, the Txi-D uses Delkim’s tried-and-tested vibration sensing. Rather than relying purely on a conventional roller wheel, it detects line movement and vibration. That can be useful when you’re fishing tight lines, watching for little drop-backs or dealing with a cautious fish that doesn’t rip off screaming straight away.
The patented digital signal processing is another big part of the appeal. It’s designed to give the alarm its digital indication and helps separate the Txi-D from a basic beep-and-light job. You can also alter the beep speed with Delkim’s patented control, giving you more say over how a run or slow pull-up is represented.
Then there are 64 digital tone settings. That’s a fair old spread, mate. You can pick something that cuts through wind, rain and bivvy rustling, or choose a softer sound for close-range work. It’s proper useful when you fish different waters and don’t always want the same volume or character from the alarm.
The twin clear LEDs give you a strong visual cue, while the mute function is handy when you’re setting up, checking the line or trying not to disturb the swim. There’s also a NiteLite output socket, so the alarm can form part of a more visible night-time setup. Keep the rods looking smart, keep the indication clear and crack on.
The wireless side is where this single alarm becomes more than just a local sounder. Its digital radio includes a range-test function, so you can check communication around the swim before settling in. The patented IMU security movement sensor is a useful extra too, warning you if the alarm itself is moved. That’s reassuring when you’re away from the rods sorting bait, making a brew or keeping an eye on another spot.
Power comes from a 9V PP3 battery, and rechargeable batteries aren’t recommended. That’s the one bit that might be a touch naff if you’re trying to run everything from rechargeables, so pack a spare before a longer session. Overall, though, the Txi-D is a compact, high-value alarm aimed at anglers who want loads of control, tidy dimensions and a bit more peace of mind on the bank.
Specifications
The nuts and bolts
- Alarm type
- Single digital bite alarm
- Sensing system
- Tried-and-tested vibration sensing for line movement and vibration
- Tone control
- 64 digital tone settings with patented beep-speed control
- Power
- 9V PP3 battery; rechargeable batteries are not recommended
- Size and weight
- Approximately 103 x 38 x 40mm; body height excluding antenna 93mm. Approximately 118g including battery
- Extras
- Twin clear LEDs, mute, NiteLite output, digital radio, range test, IMU movement sensor and moulded hard case
Specs checked with Delkim, Oct 2026.
Spot a model or spec change?
Our take
The angle
The Txi-D is all about giving you more control over how a take sounds and feels. Instead of relying only on a wheel-style roller, its vibration-sensing system detects line movement and vibration, making it a natural fit for tight lines, drop-backs and cautious bites.
Add in the adjustable beep-speed control, 64 digital tone settings, twin clear LEDs and the remote range-test function, and you’ve got an alarm that’s easy to tailor around your swim. The patented IMU movement sensor is the cheeky extra that helps protect your rods when you’re away from them.
Closer look
What you’re buying
The Txi-D is a single digital bite alarm with vibration sensing, digital signal processing and a compact alarm head. It’s built around detecting line movement and vibration, then giving you audible and visual indication that you can tune to your own preferences.
You get 64 digital tone settings, patented beep-speed control, twin clear LEDs, mute and a NiteLite output socket. User preferences are memorised, so you shouldn’t need to start from scratch every time you switch it on. The digital radio also includes a range-test function.
The patented IMU movement sensor adds a security layer. If somebody shifts the alarm or interferes with the setup, that movement detection can alert you. It’s not a replacement for sensible rod security, but it’s a smart extra for busy venues or sessions where you’re not sat directly over the rods.
Worth knowing. The alarm takes a 9V PP3 battery, and rechargeable batteries aren’t recommended. Keep a spare in the tackle pouch, especially for an overnighter or a long trip where a flat battery would be a proper pain.
Who it suits
A strong fit for tuned-in anglers
This makes most sense for anglers who want to tailor every part of their indication. If you fish tight lines, margins, drop-offs or pressured spots where bites can be subtle, vibration sensing and adjustable beep speed give you plenty to play with.
It also suits anyone who moves between swims or likes to keep an eye on more than one area. The digital radio and range-test function are useful when you’re not stood right beside the rods, while the movement sensor adds a bit of welcome reassurance.
For a simple day-ticket session where you just need one loud beep and a bright light, the Txi-D may be more alarm than you need. You’re paying for control, compact design and security features, not just a noise when the line moves.
Worth knowing. The compact body is especially handy on tight buzzer bars or cramped swims. Set the alarm square to the rod, keep the line path clean and use the mute function while you’re arranging the rig or checking the clutch.
FAQs in full
The bits anglers usually ask about
Is this a full alarm set? No. This listing is for one Delkim Txi-D alarm. It gives you the alarm head and its features, but a multi-rod setup needs additional alarms. A compatible receiver is also needed for remote indication away from the rods.
Is it suitable for night fishing? Yes. The twin clear LEDs give visual indication, the alarm can be muted during setup and the NiteLite output socket allows compatible night-time indication equipment to be connected.
How do you check the wireless range? Use the built-in range-test function before you settle into the session. Walk to the places you’re likely to fish or sit, check the receiver link and sort any positioning issues before bite-time.
Worth knowing. The moulded hard case is included and is well worth using. Small alarm heads are easy to knock about in a tackle bag, and keeping this one cased should help protect the buttons, LEDs and antenna between sessions.
On paper
Pros & cons
What we like
- Compact alarm head, around 30% smaller than previous Delkim alarm heads.
- Loads of tone and indication adjustment, including patented beep-speed control.
- Digital radio, range testing and IMU security movement sensing are included.
- Twin clear LEDs, mute function and NiteLite output make it versatile on night sessions.
- Moulded hard case keeps the alarm protected in the tackle bag.
Worth knowing
- It needs a 9V PP3 battery, and rechargeable batteries aren’t recommended.
- The feature count may feel like overkill if you only want a basic audible alarm.
- A single alarm doesn’t give you a complete multi-rod setup on its own.
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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.
01What battery does the Delkim Txi-D use?
What battery does the Delkim Txi-D use?
It uses a 9V PP3 battery. Rechargeable batteries aren’t recommended. One retailer lists a free 9V battery with each alarm, but check the exact package with your chosen seller.
02Can the Txi-D connect to a NiteLite?
Can the Txi-D connect to a NiteLite?
Yes. There’s a NiteLite output socket, so you can add compatible Delkim indication gear for night fishing and close-range visual feedback.
03Does the single alarm include a receiver?
Does the single alarm include a receiver?
The alarm includes digital radio functionality and a range-test function, but this product is the single alarm head. A compatible receiver is needed if you want remote indication away from the rods.
What anglers say
The word from the bank
Our read: a tiny alarm with serious clever stuff inside. The strongest reasons to choose it are compact alarm head, around 30% smaller than previous delkim alarm heads. and loads of tone and indication adjustment, including patented beep-speed control.; the main trade-off is it needs a 9v pp3 battery, and rechargeable batteries aren’t recommended..
Our take on the feedback
Why it appeals
Checked Sept '26 — “Compact alarm head, around 30% smaller than previous Delkim alarm heads.”
Best fit
Checked Sept '26 — “Carp anglers who like to fine-tune their setup: You can set the tone, beep speed and indication to suit your swim, your hearing and the way you fish.”
Worth knowing
Checked Sept '26 — “It needs a 9V PP3 battery, and rechargeable batteries aren’t recommended.”
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 Single Digital Bite Alarm
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