MT70-HCB-U1/ MT70-HCB-U2 4.3 inches ultra-thin LCD segment display board

DC24V power supply input, Modbus communication protocol; 4.3 inches vertical LCD segment display;
HCB-U1: White on blue, HCB-U2: White on black;
Support displays such as: over-load, full-load, inspection, fire, parking;
Automatically reduce display brightness after 30-seconds waiting and enter into energy saving mode;
Ultrathin design for wall-mounted outbound call box