Data Logger AC Voltage Accuracy Not Applicable Alert Type Digital Display Sound Current Channels Not Applicable Maximum Dew Point Measured 131 Degrees F Minimum Dew Point Measured 0 Degrees F For Phase Single Calibration Certificate Type Available Separately Minimum Sampling Rate 1 sec Maximum AC Current Measurement Not Applicable Maximum Relative Humidity Measured Not Applicable Maximum AC Voltage Measured Not Applicable Minimum Relative Humidity Measured Not Applicable