Abstract: A monitoring device for agricultural use comprising a housing adapted to accommodate at least a solar radiation sensor positioned in the top portion of the housing, the housing comprising an aperture at the top end adapted to allow the solar radiation sensor to be exposed through the aperture. The housing is attached to a hanger located at the same level or below the top end of the housing and adapted to hang the housing on a hanging element such as a cable. The housing may further comprises a leveling component for leveling the solar radiation sensor or the entire monitoring device. The monitoring device optionally comprises a shading sleeve compatible with passing the hanging element through the monitoring device.