Input channels : 16 Threshold range : ±15 V Threshold accuracy : ±100m V+3% of threshold setting Max input voltage : ±40V Max input dynamic range : ±10 V + threshold setting Min voltage swing : 500 mV Min detectable pulse width : 10 ns Input impedance : 100 kΩ±2% Input capacitance : About 8 pF Cable length : About 90 cm Lead length : About 25 cm Operation environment : 0°C~50°C, 0~80%RH