
Since August 2025 the EU Radio Equipment Directive (RED 2014/53/EU) is in force. Therefore, all electronic products with the ability to communicate via radio and having an IP stack, need to fulfil a new standard for cyber security. As a result the password for the BITZER IQ Products will change from the 4 digit password to a new 8..14-digitb individual password.
All IQ MODULES are default programmed by a 14-digit password EXW factory (see figure 1) since mid of August 2025.
The individual default password can be found on a sticker as shown below on the IQ MODULE.

Details on the Bluetooth password change can be found in the BEST SOFTWARE 2.21 Firmware
Release Notes (see figure 2)

A password change to an individual password, is possible with BEST SOFTWARE as before (via Bluetooth or BITZER BEST converter).
Please consider the required characteristics (see figure 3)

BITZER BEST Software: LINK FOR DOWNLOAD
We advise on choosing the component, check the stock and prepare a quotation.
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