Dew Point logger sensor NUL-245 June 28, 2014UncategorizedEinat Dew Point logger sensor NUL-245 This sensor measures temperature and humidity in a volume and gives the temperature below which the water vapor in that volume of air (at a constant barometric pressure) condenses into liquid water (the dew point). Specifications: Experiment Duration: 1 second to 31 days. Logger sensor Guide