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NavKar Systems
Product datasheet
November 2026
NavKar THK-125

THK-125 Set of 80 LF RFID Clamshell Thick Smart Cards for TIME ATTENDANCE OR Access Control System Having RFID

A set of 80 thick 125 kHz RFID clamshell cards for time attendance machines and access control systems that read 125 kHz cards. The thick 1.8 mm card is tougher than a thin card. Buy it in bulk for staff, students or members.

THK-125 Set of 80 LF RFID Clamshell Thick Smart Cards for TIME ATTENDANCE OR Access Control System Having RFID

Specifications

ModelTHK-125
Pack size80 cards
TypeClamshell thick proximity card, LF
Frequency125 kHz
Size86 x 54 x 1.8 mm
Weight9 g, plus or minus 0.5 g
Reading distanceUp to 7 cm
MaterialHard shell ABS, PVC cover foil (matt surface)

In the box

80 x THK-125 clamshell card

Frequently asked questions

What frequency is the THK-125 card?

It is a 125 kHz low frequency proximity card.

How thick is the THK-125 card?

The card is 1.8 mm thick and measures 86 x 54 mm, so it is thicker than a normal thin card.

How far can the card be read from?

The listing gives a reading distance of up to 7 cm. The real distance depends on the reader.

Will it work on my attendance or access control machine?

It works with time attendance and access control systems that read 125 kHz RFID cards. Check that your machine reads 125 kHz cards, not 13.56 MHz.

What is the card made of?

The hard shell is ABS and the cover foil is PVC with a matt surface.

How many cards are in this pack?

This set has 80 cards.

Will it work with a 13.56 MHz Mifare reader?

No. This is a 125 kHz card. For 13.56 MHz readers use a Mifare card such as the MFC-1K.

How heavy is one card?

About 9 g, with a tolerance of plus or minus 0.5 g.

What type of cards are these?

These are THK-125 clamshell thick proximity RFID cards. They work at 125kHz LF and measure 86 x 54 x 1.8 mm.

Which devices do they work with?

They are made for time attendance and access control devices that read 125kHz LF RFID cards. Check that your reader supports 125kHz cards before ordering.

Specifications from NavKar Systems' product details for this model. Specifications can change when the maker updates a model; see navkarsys.com/hi/products/navkar-set-of-80-lf-rfid-clamshell-thick-smart-cards-for-time-attendance-or-access-control-system-having-rfid for the latest. All prices on navkarsys.com include GST. Free technical help for setup is available from the NavKar Systems team.
NavKar Systems · navkarsys.com · marketing@navkarsys.comTHK-125