for calibration purpose Highly Accurate Liquid Calibration BathWide Temperature RangeOffer Range from -30 to 120°cLarge Immersion DepthIdeal for Industrial/Laboratory filedLarge immersion depth 200mm with 150x150access opening and wide operating range.SpeedQuick to reach various temperaturesie. Its heat up room temp to 120°cin 40 min and cools down to -30°cin 60 minutes.Stirrerextremely highly accurate liquid stirrer bath