Various Ranges: Overall Range -110ºC to +20ºC Dewpoint Digital Indication in ºC or ºF Automatic Calibration Guaranteed Accuracy ±2ºC Dewpoint Desiccant Dry-Down Chamber for Rapid Readings Battery and Mains Power Supply Sample Flow Control for Inlet Pressure up to 20barg Sample Flow Indication Supplied Laboratory Calibrated and Ready for Use Quick Connect Fittings at Inlet