詳細規格及用途描述

‧Special LED Lamp-Reflector Design provides high contrast & viewing angle. ‧Flexible Message Display ‧Many Language Models ‧50 Display Schedules ‧User-Designed Graphics‧Real-time Clock ‧Background-Communication　　 ‧16 Display Message Selection Inputs (optional) ‧Temperature Display (optional)　　　　　 ‧Serial Computer interface RS232 (optional Networking Software)