... , supported by battery or external AC adapter. S210 can measure various signals, such as PT1000,voltage signal 0-5V ( ... logger for analysis anytime. Features: l Various inputs:Voltage,PT1000,Pressure,CO,CO2,ph,temperature ,humidity,current,etc ... current input7900 levelsSignal character at binary inputLow potential-less contacts or the two-state voltage signalMinimum pulse duration at binary input500ms ...