Air Temperature and RH Recorder consists of a weatherproof enclosure which contains the data logger and power supply, and comes complete with a solar panel, tripod stand and leaf wetness, air temperature and humidity sensors. The Recorder has a wetness sensor that enables the data logger to detect the presence of surface moisture on foliage and calculate the duration of wetness. The Recorder detects an electrical resistance change between the gold-plated elements of the grid. The Air Temperature and RH Recorder is capable of providing efficient performance.