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High Frequency (HF) Keyholder⚓︎

General information⚓︎

The High Frequency (HF) Keyholder supports RFID tags and key fobs based on the ISO 15693 and ISO 14443A standard.

Example of HF Keyholder

Our key fobs and RFID stickers are easily recognizable as they are blue. The old LF Keyholder came with a black key fob and a yellow RFID sticker. These are NOT compatible with the HF Keyholder. The LEDs light up blue when a key fob/sticker is not inserted and green when all configured key fob/stickers are inserted.

Frequently asked questions⚓︎

Keyholder or cardholder?

We use the terms keyholder and cardholder synonymously. The product is called HF Keyholder and allows up to two cards to be held in addition to the placement of a key fob.

Why does the new HF Keyholder look different?

We’ve updated the color of our HF Keyholder from blue to black to improve our manufacturing process. Here’s what you need to know:

  • The new black model works exactly like your current keyholder
  • All features and functions remain the same
  • Your CloudBoxx will recognize both, black and blue keyholders
  • Your existing blue key fob will work with the new black keyholder

Note: This is only a color change. All technical specifications stay the same.

What RFID type do the new HF RFID stickers from INVERS have?

We use RFID types based on the ISO-15693 norm.

Example of INVERS sticker

Which RFID types does the new HF Keyholder support?

The HF Keyholder supports the RFID type ISO-15693 and ISO-14443A.

Do you still need RFID stickers for the HF Keyholder or can you simply read the RFID of the fuel/charging card?

RFID cards using ISO-15693 and ISO-14443A standard should work with the HF Keyholder out of the box. You can read the RFID chip of the fuel or charging card and configure it to the Cloudboxx. In that case, no additional RFID stickers are required. Other card types need the additional RFID sticker to be recognized.

What is the difference between LF and HF key fobs?

The LF key fob transmits on 125 kHz (HitagS), while the HF key fob transmits on 13.56 MHz (ISO-15693).

Is there a way to distinguish between LF and HF Keyholders in FleetControl and the Cloudboxx API?

We are working on updating our FleetControl UI to display the type of keyholder that is connected to the CloudBoxx (high frequency or low frequency). In the meantime, you can use the peripheral status endpoints of the CloudBoxx API or the CloudBoxx Accessories endpoint of our Vehicle Lifecycle API to check the installed keyholder and differentiate between the LF and HF version.

What does the information ‘rfid_tag_presence_detection_mode’ mean?

  1. configured_rfid_tags_only (standard configuration): Only conventional monitoring of the configured RFID tags and the key fob is activated.
  2. simple_presence_detection: Only simple presence detection of unknown (not configured) RFID tags is activated.
  3. configured_tags_and_simple_presence: Conventional monitoring of configured RFID tags/key fob and simple monitoring of unknown (not configured) tags are active in parallel.