The temperature and relative air humidity were obtained through a digital thermo-hygrometer (Model Q401BHT, Quimis[R], Brazil), installed in the central part of the environments, with the sensor arranged at a height of 1,50 m; The luminosity was measured using a digital luxmeter
(Model LD-240, Instrutherm[R], Brazil) and precipitation data were collected at the Meteorological Station of INMET (Instituto de Meteorologia) installed 500 m from the crop.
The average continuous illumination intensity at the eggshell level was 30 lx, as measured with a digital luxmeter
(Mastech MS6610, Precision Mastech Enterprises, Hong Kong, China).
Indoor illumination were taken at mid points of east and west rooms (Le and Lw) using luxmeter
probes located 1m above floor level.
In terms of brightness levels, the Note 10.1 registers a Luxmeter
reading of 1654, while the iPad Air's 9.7-inch screen registered 1522, both at 100% brightness with the same content on the screen.
Similar to a previous study , the transmission through the skull was measured with commercially available methods (BL-10 L luxmeter
, Volt Craft, Hirschau, Germany).