HAENNI KRK501 Thermohygrograph Fields: Type KRK501 Application: Recording of temperature and humidity of ambiant air Operation temp.: -10...50°C ; 0...** -35...45°C ; 0...** -20...40°C ; 0...** 0...100°F ; 0...** 20...120°F ; 0...** -30...110°F ; 0...** Indicator: Recording paper Drive:Clockwork hand wound Variable recording time 24 hours or 7 days Operating period 8 days Quartz clockword Variable recording time 24 hours,7 days or 31 days Operating period see reverse side. Output **: Paper ; No electrical ** Features: Accuracy: Thermograph 1% ; Hygrograph 2% Catalogue sheet: please contact us now! TIANPO TECHNOLOGY