Useful, practical, and essential, this Davis solar radiation sensor completes your major and minor marine accessories and equipment. It measures solar radiation for evapotranspiration (ET) and Temperature/Humidity/Sun/Wind (THSW) Index. Designed to fit your needs, this exceptional add-on is one of your best gears for a fun and exciting outdoor experience anytime, anywhere!

Features:
Useful and essential nautical equipment and accessories
Practically useful and valuable
Ideal gift for outdoor enthusiasts
Recommended for outdoor use
Silicon photo diode provides good match to solar spectrum

Dimensions: 2"H x 3"W x 5"D
Material(s): silicon/synthetic