This is a digital temperature humidity sensor intended for Davis Vantage Pro2 units which began production in early 2016 and specifically have a manufacturing code which starts with AS or later ( e.g. AT, AU, AV, etc.). This module will work in a “plug-and-play” fashion with following models (for all geographical versions USA, EU, UK, OV) with the above stated manufacturing code: 6152, 6162c, 6152, 6162, 6153, 6163, 6323, 6322, 6322c, 6328, 6327, 6327c.
This module will also work with Davis Vantage Pro2 units manufactured after January 2006 through manufacturing code AR, however, it will result in a reading which is 0.5 degrees Celsius (0.9 degrees Fahrenheit) too high. This error can be offset and corrected in the console as a calibration procedure (see page 26 of your console manual for calibration).