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Home/Products/Key fobs
Products · Fobs

RFID and NFC key fobs

Moulded ABS key fobs from 31 to 56 mm, encoded to your system, with every chip read-tested before shipping.

Body
Moulded ABS
Sizes
31 to 56 mm, across twelve shapes
Thickness
4.3 to 8.16 mm
Frequency
125 kHz · 13.56 MHz
Personalisation
Laser engraving · full colour print · silkscreen
Fingertips holding a navy blue RFID key fob printed KESTRA on a split ring against a black wall reader with a green light
Four RFID key fobs on split rings: a navy ABS teardrop printed KESTRA, a black leather fob, a sage green fob and a charcoal teardrop
Two green ABS RFID key fobs on split rings, one printed QORA on the front, the other showing a laser engraved serial number on the back
A tan leather RFID key fob with edge stitching and a riveted tab on a split ring, printed ORSANA, lying on pale stone

What are they used for?

Access and entry

Offices, buildings and gated sites where the credential lives on a keyring, encoded to the system on the door. Where a printed badge is needed, a card carries the same chip.

Access control and security →

Gyms, clubs and member venues

Turnstiles and member entry, where a fob survives a gym bag better than a card. Numbers can be laser engraved to stay readable, and reorders keep the same chip.

Clubs and associations →

Hotel groups and resorts

Staff credentials, and guest keys at villas and resorts where a keyring beats a wallet card. The lock decides the chip, and a sample is tested in your door first.

Hospitality →

Specifications

Which frequency do you need?

It depends on the reader already on your door, never on the fob itself. Fobs run at 125 kHz and 13.56 MHz. They are not available in UHF, so if your system reads at 860 to 960 MHz the credential has to be a card or a wristband, and we make both.

Low frequency
125 kHz

Older proximity readers, door intercoms and the legacy access systems still in service.

Chips and encoding
EM4200 · read onlyT5577 · read and writeUID readingEncoded at the plantEvery chip tested
High frequency
13.56 MHz and NFC

Most current access control, gym turnstiles, campus systems and phone taps over NFC.

Chips and encoding
MIFARE Classic EV1 1K · 4KMIFARE Ultralight EV1MIFARE DESFire EV2 · EV3NTAG213 · NTAG215 · NTAG216ICODE SLIXNFC URL and NDEF

What arrives, and when?

Fobs are moulded, marked, encoded and chip-tested at the plant that makes the cards, then boxed with your logo printed in black.

Body
Moulded ABS
Sizes
31 to 56 mm, twelve shapes
Thickness
4.3 to 8.16 mm
Encoding
In-house at the plant, every chip tested
Minimum order
500 units
Lead time
12 calendar days

What can go on a fob?

Less surface than a card, so the mark has to do more work with less room. Three ways to put it on.

Laser engraving
Logos, text and serials, cut into the body
Full colour print
CMYK on the flat face
Silkscreen
One solid colour, including Pantone
Numbering
Sequential or non-sequential, per fob
QR codes
Laser engraved, one per fob where needed
Chip data
Encoded individually per fob where needed

A fob or a card?

The chip and the encoding are the same, so the reader cannot tell them apart. Everything that differs is physical, and it is set out below rather than left to a sales conversation.

Key fobCard
Where it livesOn a keyringIn a wallet or a holder
Frequencies125 kHz and 13.56 MHz125 kHz, 13.56 MHz and UHF
Printable areaOne small faceBoth faces, edge to edge
Full colour artworkYesYes
Laser engravingYesOn wood only
Magnetic stripeNoOn PVC only
Used forStaff and members who carry keys anywayAnything that has to be seen, shown or printed on

What we can put on it

On the fob
Chip encoding
000127
Sequential numbering
4018127
Barcodes and QR
Custom shape
See how each one is made →

Will it work with your system?

Send us the reader or lock model you use. We confirm what we can supply before you order, rather than guess.

What can we confirm?

Frequency and chip family, from the reader or lock model or from the fob you use now. You can also post us a fob and we verify it here.

Where are the limits?

No UHF in a fob, at 860 to 960 MHz the credential has to be a card or a wristband. On encrypted systems we can supply the correct chip, but credentials controlled by the system owner may need to be written by them.

What do we recommend?

Ask for a free sample in the model and chip you need, and test it on your reader before a full production run.

Standards the fobs are built to
ISO/IEC 14443 Type AISO/IEC 15693
Compatible with
VingCardSALTOdormakabaOnitySaflok125 kHz readers13.56 MHz readersDoor intercomsNFC phones

Lock encoding depends on the chip and on each system's technical requirements, keys and authorisation. All trademarks are the property of their respective owners. No affiliation or endorsement is implied.

What do we need from you?

01

Your artwork

A vector file to engrave or a print-ready PDF to print. The face is small, so keep the mark simple.

02

Your reader or lock model

The model and version, or a clear photo of the reader. The chip is confirmed in writing.

03

The quantity

An approximate number is enough to quote. Minimum order is 500 units.

04

The delivery date

A rough date is enough to plan it. Standard production is 12 calendar days.

Questions we hear the most

Will a fob work with the card readers we already have?

If the reader runs at 125 kHz or 13.56 MHz, yes, and it reads the fob exactly as it reads a card. Send the reader or lock model and we confirm the chip against it before you order.

Can you supply fobs in UHF?

No. Fobs are 125 kHz and 13.56 MHz only. If your system reads at 860 to 960 MHz, the credential has to be a card or a wristband. We make both, so the answer is a different product rather than a different supplier.

Can fobs and cards run on the same system?

Yes, and plenty of sites do exactly that. Cards for the people who need a printed badge, fobs for the people who do not. The same chip goes in both, encoded the same way, so the reader does not know the difference.

Can each fob carry a different number?

Yes. Serial numbers and QR codes are laser engraved individually, and the chip can be encoded individually as well. Send the data as a spreadsheet, one row per fob.

What are they made of?

Moulded ABS. It is the material that survives a keyring, which is the whole job of a fob.

How big are they?

From 31 to 56 mm across twelve shapes, and from 4.3 to 8.16 mm thick. Tell us where it has to fit, or send a photo of the keyring it will live on, and we will suggest the model.

Can we print in full colour on a fob?

Yes, CMYK on the flat face, and silkscreen where you need a solid Pantone. Laser engraving is the third option and it is the one that does not wear off, which matters more on a keyring than it does in a wallet.

Can we test one before ordering?

Yes, and we recommend it. Ask for a free sample in the model and chip you need, and try it on your reader before committing a run.

Can you match the fob we already use?

Usually. Send the fob itself if you can, along with the reader model and any specification you were given at installation. The fob in hand settles it.

Before you order

Blank ABS key fobs on split rings in teardrop, square, hexagon and shield shapes
Fob guide
Key fobs in ABS

When a fob is the right credential, and what the twelve outlines and four diameters change.

Read the guide →
A hand holding four blank white cards up to a wall-mounted access control reader
Lock guide
Card compatibility

A fob answers the same reader as a card. Four variables decide whether the door opens.

Read the guide →
A shrink-wrapped stack of blank white cards with a label, beside a single loose card
Encoding guide
Blank or pre-encoded

The three routes from blank stock to a working credential, and who holds the keys.

Read the guide →

Complete your order

Three RFID hotel key cards fanned out: navy PVC, white PVC and light wood, printed TAVERA

RFID & NFC cards

Cards for credentials that have to be seen, shown or printed on, in PVC, recycled PVC or wood. Same chips as the fob and the band.

RFID & NFC cards →
A cream paper key card sleeve holding a white card, a navy sleeve and a clear badge holder

Sleeves and holders

Sleeves and holders made to the card format, printed with the same artwork and specified on the same order sheet.

Accessories →
Three silicone RFID wristbands in navy, white and light blue with adjustable straps

Wristbands

Where a fob is impractical, for guests or members. Same chips, so fobs and bands run on one site.

Wristbands →

Start with a sample.

Ask for a free sample in your material and chip.

A free sample to test
Ask for a free sample in the model and chip you need, sent by courier, and test it on your reader.
A reply the same working day
Quote requests are answered the same working day.
Compatibility first
We confirm the frequency and chip family against your reader or lock model, and we tell you when we cannot.