“Chaos” code keyboard is used to enter passwords. Unlike a standard keyboard – all keys here are mixed, some of them are upside down. The number of symbols to be entered is unlimited.
After players enter the correct password – the relay turns on/off and/or the 4-digit code is displayed on the indicator (if needed). The reset is performed by any key that does not represent a symbol from the password.
The price depends on the supply kit and software complexity.