The Best Bite Alarms

By Alex Clayton · Updated 23 October 2026

A £60 set and a £580 set both tell you a fish has picked up your bait, and neither gets you an extra bite. Paying more buys features, full waterproofing and durability.

For most carp anglers, the best bite alarms for the long term are a vibration-sensing premium set such as the Delkim Txi-D v2, or a set with a rechargeable receiver such as the Nash Siren R4. Under £100, budget bite alarms in a 3+1 set do the job for day sessions and the odd overnighter.

Prices are the maker’s own (Delkim) or a named UK retailer’s, checked on 23 October 2026. They move: two Angling Times pages quote the Nash R4 at £599.99 and £390.99, so check before you buy. Sets were compared on maker and retailer specifications, not bank-tested for this page.

Some links on this page may earn Fishing Session a commission at no extra cost to you. That does not decide which sets are listed.

Set	Key feature	Receiver range (claimed)	Receiver power	Indicative 3-rod price, £ (source)	Best for
Delkim Txi-D v2 / Rx-D v2	Vibration sensing, 4-year registered warranty	Up to 750 m (maker)	9V PP3	579.99 (Delkim)	Long sessions in all weathers
Nash Siren R4	USB-C rechargeable receiver	Over 750 m (retailer listing)	USB-C rechargeable	549.99 (Angling Direct, RRP £599.99)	Overnighters, boat anglers
Fox RX+	8 steps of volume, tone and sensitivity	Not stated by retailer	3 x AA	599.99 (Angling Direct, RRP £709.99)	Windy, drifting swims
Wolf Icon Qi	UK designed and made	2 km line of sight (retailer listing)	Not stated	About 590, indicative	British-made buyers
Prologic / Sonik budget group	3+1 under £100	Not stated	Not stated	79.99 to 84.99 (eTackle, stock unconfirmed)	First full set
NGT XT3	Cheapest set with receiver	400 m (listing, unverified)	Not stated	About 59 (YPC)	Trying carp fishing, spare set

Items 1 to 6 are the sets. Items 7 to 10 cover rod count, sensing, range and running costs. For other kit, see our other tackle buying guides.

1. Delkim Txi-D v2 and Rx-D v2: Best Bite Alarms for Sensitivity and Long-Term Value

The Txi-D v2 is a vibration-sensing alarm. There is no roller wheel turning, so there is nothing for water and grit to clog (eTackle). You can adjust the vibration response and the beep speed, and the heads are weatherproof. The multi-colour LEDs have 8 brightness levels with day and night modes, there are 32 tones, and lifting a head sends an anti-theft alert to the receiver (Delkim).

The Rx-D v2 receiver reaches up to 750 m “depending on bankside conditions”, pairs with up to 12 alarms, vibrates with 1 to 3 repeats and goes up to 100 dB. It runs on a 9V PP3 and has its own movement detection (Delkim).

Delkim’s prices on 23 October 2026: 3+1 set £579.99, 2+1 set £449.99, Rx-D v2 alone £159.99, single Txi-D v2 with SmartLite hanger £144.99. Buying a 2+1 now and a third head later comes to £594.98, about £15 more than the 3+1, but it spreads the cost.

One catch: the Rx-D v2 works only with Txi-D v2 alarms. Txi-D v2 heads do work with the original Rx-D, so owners of an older receiver can upgrade the heads first.

Pro: vibration sensing that keeps grit and water out
Pro: 12-alarm pairing and receiver vibrate
Pro: 4-year warranty once registered
Con: £579.99 for a 3+1 set
Con: new receiver will not pair with older heads

Best for: long sessions and anglers who want one set for years. Skip if: you fish a handful of day sessions a year.

2. Nash Siren R4: Best Bite Alarm Set With a Rechargeable Receiver

A flat receiver at 3am leaves you lying in the bivvy straining to hear the heads. The R4 receiver charges by USB-C in about 4 hours, and the retailer listing claims around 20 weeks of run time from a charge (Angling Direct).

The receiver is rated at over 750 m “subject to atmospheric conditions”. It has 4 channels plus a 5th Buddy Channel that takes up to 32 further alarms, which helps when two anglers share a swim.

Each alarm takes 2 x AAA cells, not included, so add them to the bill. Each head has 5 sensitivity settings and 8 tone and volume options, and the listing describes them as 100% waterproof. Homecoming Mode is there for boat anglers, to help them find their way back to the swim. Registered alarms get a 2-year extended warranty.

Angling Direct prices on 23 October 2026:

2-rod set: £408.99 (RRP £459.99)
3-rod set: £549.99 (RRP £599.99)
4-rod set: £599.99 (RRP £759.99), out of stock that day, so check before you plan around it

Quick comparison: against the Delkim, you get a rechargeable receiver instead of a 9V, 5 fixed sensitivity steps instead of adjustable vibration response, and a 2-year registered warranty instead of 4. At these prices the 3-rod R4 is also about £30 cheaper, and it is the pick here for anyone who fishes from a boat.

3. Fox RX+: Best Bite Alarms for Fine-Tuning Tone, Volume and Sensitivity

How do you know the receiver is still in range before a fish proves it is not? The RX+ has a range test function that checks it for you (Angling Direct).

From the retailer listing, these carp bite alarms use D-Tec Plus sensing and give you 8 levels each of volume, tone and sensitivity. The case is sealed and waterproof, and the receiver syncs up to 8 RX+ heads, with a vibration alert, a bivvy light and anti-theft.

Power is all AA: 2 per alarm and 3 in the receiver. AA cells are on sale in any garage or village shop, but a 3-rod set swallows 9 of them.

The retailer page gives no range figure. Angling Times puts it at over 600 m, which is their figure, not a Fox specification.

The 3-rod presentation set was £599.99 at Angling Direct against an RRP of £709.99, and in stock on 23 October 2026. Two Angling Times pages quote it at £576.99 and £589.95, so shop around.

Those 8 sensitivity steps are the reason to buy it. Adjustable sensitivity is what screens out drift and wind, and separate tones help you tell rods apart by ear in the dark (eTackle).

The verdict: if your swims are exposed to wind or undertow, the RX+ gives you 8 sensitivity steps against the Nash R4’s 5. Budget for a stock of AA cells.

4. Wolf Icon Qi: UK-Made Bite Alarms With the Longest Claimed Receiver Range

The Hubb receiver that comes with the Icon Qi is claimed to reach 2 km line of sight. That is well past Delkim’s 750 m figure, and on a tree-lined bank it means very little. Clear line of sight across a lake is rare, and you should not be that far from your rods anyway (see item 9).

What a Wolf stockist listing does say (Johnson Ross Tackle):

the Icon Qi is the flagship of Wolf’s Icon range
it is designed and made in the UK
the receiver is called The Hubb
retailer listings give a 3-year warranty, or 4 with registration

All of that comes from retailer listings, because the Wolf site could not be checked at the time of writing. Sources disagree on the number of channels, so none is given here. Battery and sensing details were not confirmed either.

Angling Times quotes £589.99 for the 3-rod set. Treat it as about £590 and indicative, and check the current price with a stockist.

If you want British-made bite alarms and will register the warranty, shortlist it alongside the Delkim.

5. Prologic C-Series, Prologic BAT+ Pro and Sonik Herox: Best Budget Bite Alarms With Receiver Under 100 Pounds

Most lists jump from a single 60-pound alarm straight to 600-pound sets, leaving nothing for the angler buying a first set of three alarms and a receiver.

Lowest listed prices at eTackle on 23 October 2026, with stock not guaranteed (eTackle):

Set	Lowest listed price	Bivvy lamp included	Stock note
Prologic C-Series 3+1	£79.99	Not stated	Not guaranteed, check
Prologic BAT+ Pro 3+1	£84.95	Not stated	Not guaranteed, check
Sonik Herox 3+1	£84.99	Yes (RGB)	Not guaranteed, check

Range, battery type and warranty for these three were not confirmed, so compare them on the retailer’s page before you buy.

What do you give up against a £580 set? Less than the price gap suggests. Angling Times notes that every alarm registers a bite, and dearer ones add features, full waterproofing and durability. Volume, tone and LED colour are adjustable on most alarms even under £50. Look after budget heads: cover them in heavy rain and dry them off after a session.

Two sets still turn up on older lists but are left out here. The Korum KBI-R 3-rod set is listed at £52.99 at Angling Direct but was out of stock, and one retailer says it has been discontinued. The Sonik SKX 3+1 (£229.99 list) was out of stock at every retailer found, so neither can be relied on.

Best for: a first full set for day tickets and occasional nights. Skip if: you fish long sessions in all weathers.

6. NGT XT3 3+1: The Cheapest Bite Alarm Set With Receiver Worth Considering

For about £59, well under half the price of a single Delkim Txi-D v2 head (£144.99), you get three alarms, a receiver and a case.

The XT3 3+1 is listed at about £58.95 to £59.95 (YPC). The listing’s date stamps are inconsistent, so check the live price.

Features from that listing:

adjustable sensitivity, volume and tone
a vibration mode
a night light
batteries not included

The listing also claims 400 m of range. That could not be verified, so treat it as a best case and keep the receiver close.

It suits day-ticket sessions, a first overnighter, or a spare set in the car. If you later buy a premium set, the NGT becomes the backup.

Quick comparison: the item 5 group costs about £20 to £25 more, and the Sonik Herox adds an RGB bivvy lamp for that. If you already know carp fishing is for you, that extra is worth paying. If you are still finding out, the XT3 is the cheaper way to learn what you want from your next set.

7. How Many Bite Alarms Do You Need? 3+1 Sets, 2+1 Sets and Adding Heads Later

What does “3+1” mean, and do you need the 3? It means three alarm heads plus one receiver (eTackle). Whether you need three depends on the rods you fish and the water’s rules.

Fisheries set their own rod limits, so check the fishery rules before you buy a 4-rod set. You also need a rod licence to fish in England and Wales, and the licence sets its own rod limit. Buy alarms to match the rods you actually use. If you are still choosing those, see our guide to the best carp rods.

Session type	Sensible set	Feature that matters
Short day session	2+1 or budget 3+1	Clear tones, simple setup
Overnight carp	3+1	Receiver vibrate, muted heads
Bream or tench on the feeder with alarms	2+1	Sensitivity control for small indications
Shared swim	3+1 with spare channels	Nash R4 Buddy Channel

A full set is not the only way in. Delkim sells a 2+1 set and single heads, so you can start smaller and add a head later (Delkim). Check receiver compatibility before mixing generations: the Rx-D v2 pairs only with Txi-D v2 heads. Do not assume one brand’s alarms will pair with another brand’s receiver.

The alarms screw onto banksticks or a pod through the thread in the base. On hard banks or platforms a pod is easier, and our pick of the best rod pods covers that.

Recommendation: if you fish two rods on day tickets, a 2+1 or a budget 3+1 is plenty.

8. Roller Wheel vs Vibration Sensing: How Bite Alarms Detect a Take and How to Stop False Bleeps

An alarm that bleeps every time the wind catches the line gets turned down, and down, until it misses the real bite.

Bite alarms detect line movement in one of two ways (eTackle):

Vibration sensing picks up movement of the line across a sensor. There are no moving parts, so water and grit stay out. Delkim is the best-known example (Delkim).
Roller wheel alarms read the line turning a wheel. A moving part is one more thing for weed, grit and water to get at.

Before you blame the alarm for false bleeps, check the setup:

Screw the alarm onto the bankstick or pod.
Rest the rod with the line over the wheel or sensor.
Clip a bobbin or hanger to the line between the alarm and the reel to put light tension on it.
Pair the receiver and test each head.

In wind, drop sensitivity one step at a time rather than all at once. Give each rod its own tone so you know which one is going.

Budget for bobbins or hangers if your set does not include them. The single Delkim Txi-D v2 comes with a SmartLite hanger, but check what each set listing includes.

Quick setup check:

line tensioned by a bobbin or hanger
sensitivity set for today’s wind
a different tone on every rod

9. Receiver Range, Muting Heads and Night Etiquette: What the Range Figures Really Mean

Even the makers hedge. Delkim says up to 750 m “depending on bankside conditions”, and Nash says over 750 m “subject to atmospheric conditions” (Delkim; Angling Direct). With trees, bivvies and rising ground between you and the rods, expect less.

A receiver lets you sit in a friend’s swim and stay in earshot, but Angling Times advises against sitting miles away. There is a fish-care reason too: a running fish needs you on the rod quickly, before it reaches snags.

The better use of a receiver is quiet. Mute the heads and keep the sound in the bivvy, so you are not broadcasting every bleep across the lake. Receiver vibrate helps heavy sleepers and anglers who are hard of hearing, and the Delkim Rx-D v2 vibrates with 1 to 3 repeats. For the rest of a night setup, see our guide to carp bivvies and the best fishing headtorches.

Keep the volume down after dark on busy lakes. Fisheries can have their own rules on alarms and night fishing, so check with the fishery before your session.

Anti-theft on the Delkim and Fox receivers alerts you to movement (Delkim; Angling Direct). It does not replace staying near your gear.

The verdict: buy on sensing, vibrate and mute, not the range headline. You will fish well inside any of these figures.

10. Bite Alarm Batteries, Running Costs and Warranties Compared

Pack the right cells before you leave. A 3-rod Fox RX+ set takes 9 AA, a 3-rod Nash R4 set takes 6 AAA plus a charged receiver, and the Delkim receiver takes a 9V PP3.

Set	Alarm power	Receiver power	Warranty
Delkim Txi-D v2 / Rx-D v2	See maker	9V PP3	2 years, 4 with registration
Nash Siren R4	2 x AAA per alarm, not included	USB-C rechargeable (about 4 hours to charge, 20 weeks claimed)	2-year extended warranty on registered alarms
Fox RX+	2 x AA per alarm	3 x AA	Check with retailer
Wolf Icon Qi	See maker	See maker	3 years, 4 with registration (retailer listings)
NGT XT3	Not stated, not included	Not stated	Not stated

Sources: Delkim, Angling Direct (Nash), Angling Direct (Fox), Johnson Ross Tackle (Wolf), YPC (NGT).

Three habits that save money:

Register the warranty the day you buy. It adds 2 years on Delkim and, per retailer listings, 1 year on Wolf.
Top up a rechargeable receiver before a long session rather than relying on the 20-week claim.
Keep spare cells in a dry bag in your tackle box.

Warranty terms change, so check the maker’s current terms.

Recommendation: if you hate buying batteries, the Nash R4’s rechargeable receiver is the easiest to live with. For the longest cover, register a Delkim: 4 years on the maker’s own terms.

Frequently asked questions

Do I need a receiver with my bite alarms?

No, but it helps. A receiver is useful on overnight sessions, for anglers who are hard of hearing, for fishing with silent heads, and when you sit in a friend's swim. See item 9 for how to use one. Whatever alarms you use, you still need a rod licence in England and Wales.

Do bite alarms help you catch more fish?

No. Bite alarms only alert you to the bites you get. They let you react faster and fish through the night, but getting more bites still comes down to location, bait and rigs.

What does 3+1 mean on a bite alarm set?

A 3+1 set is three alarm heads and one wireless receiver. A 2+1 is two heads and a receiver. Match the set to the number of rods you fish and the fishery's rod limit. See item 7 for which set size suits which session.

How far do bite alarm receivers work?

Maker figures are maximums. Delkim rates the Rx-D v2 at up to 750 m depending on bankside conditions, and trees and rising ground cut that down. Stay within reach of your rods so you can get to a running fish quickly.

Are cheap bite alarms any good?

Yes, for registering bites. Dearer sets add features, full waterproofing and durability, which matter more on long sessions in bad weather. See items 5 and 6 for sets with a receiver at about £59 to £85.

Can I use a new Delkim receiver with older alarms?

No. The Rx-D v2 receiver works only with Txi-D v2 alarm heads. It works the other way round, though: Txi-D v2 heads also pair with the original Rx-D receiver, so you can upgrade the heads first and the receiver later.