Davis Temperature/Humidity Sensor w/24-Hour Fan Aspirated Radiation Shield

The Davis Temperature/Humidity Sensor with 24-Hour Fan Aspirated Radiation Shield is an essential instrument for anyone requiring accurate environmental data in demanding conditions. Whether you're monitoring climate-controlled storage for specialized vehicles, tracking ambient conditions during performance testing, or maintaining precise environmental logs for technical diagnostics, this sensor delivers reliable dual-parameter measurement. The 24-hour fan-aspirated radiation shield is purpose-built to eliminate thermal errors caused by solar radiation, reflected heat, and infrared interference—common problems that plague outdoor or semi-exposed installations.

At the core of this assembly are precision temperature and humidity sensors protected within a continuously aspirated shield design that maintains airflow across the sensing elements. The 24-hour fan operation ensures consistent measurement accuracy regardless of time of day or seasonal solar angle, critical for applications where diurnal temperature swings introduce significant measurement variance. With dimensions of 11 x 10 x 16 inches and a weight of 7.5 lbs, the unit strikes a balance between sensor protection and practical field deployment. Davis Instruments' engineering ensures the sensor array responds quickly to genuine environmental changes while rejecting radiant heat artifacts that compromise data integrity in outdoor or high-UV environments.

Technicians and facility managers benefit most from this sensor in scenarios requiring long-term environmental trending: vehicle storage climate verification, dyno room monitoring, or outdoor test-cell operations where thermal stability directly impacts measurement repeatability. Installation is straightforward on mounting poles or structures, with the aspirated shield design requiring only standard power connection for fan operation. This Davis model integrates seamlessly into both standalone weather stations and data logging systems, making it ideal for automotive shops, research facilities, or any operation where sensor accuracy directly influences technical decisions or regulatory compliance.