The Ambient Weather WH31-SRS passive solar radiation shield is specifically designed to house the WH31E temperature / humidity sensor WH31P waterproof probed thermometer and WH31L Lightning Detector. The radiation shield allows airflow while protecting the sensor from the elements and the effects of solar radiation. Mount the WH31-SRS to any Ambient Weather Mounting Hardware (1.25 OD) vertical surface or horizontal surface using the included hardware: screws and anchors for wood stucco or drywall and U-bolts for pole mounting up to 1.25” outer diameter. Specifications: Solar Radiation Shield dimensions: 6.125 x 2.75 diameter Bracket dimensions: ~7 Long x 2.125 Wide x 1.75 High Includes: screws and anchors for wood stucco or drywall or U-bolts for pole mounting up to 1.25 diameter