4-Ch Counter/Frequency Module Minimum Pulse Width: 500μ sec. (Frequency Mode), 100μ sec. (Counter Mode). Function Mode: Counter (Up/Down, Bi-direction) Frequency. Input Frequency: Frequency Mode: 0.3~1000 Hz Counter Mode: 5000 Hz max. Isolated Voltage: 1000 VRMS. Programmable Digital Noise Filter: 1~65000μ sec.
€344