-display lcd 20 x 4, character height 4.5 mm, LEDs backlit;
-contrast and backlight adjustable by software;
-20-keys membrane keypad with metal snap 250 gr.;
-RS232-485 serial terminal selectable by hardware;
-transmission speed selectable between 1200 to 13200 baud;
-MULTIDROP connection;
-128 bytes of EEPROM on microcontroller;
-192 bytes of RAM on microcontroller;
-7 Kbytes of EPROM;
-possibility of storing 300 messages of 80 characters;
-power range from 9 to 38 volts;
-connector for serial Db 9 or Db 25 poles;
-warning buzzer