8CH RS232 TTL232 IO Control Switch Board Com DB9 Serial Port Für Momentary Self-locking Verriegelung Latch Verzögerung Relais modul
USD 26.71USD 26.98
8CH RS232 TTL232 IO Control Switch Board Com DB9 Serial Port Für Momentary Self-locking Verriegelung Latch Verzögerung Relais modul