©JRI
4
a)
Perturbations sources
Presence of obstacles in the way of the waves between the SPY RF ModeM and the Mini SPY RF
GREEN (wall, ceiling, person, furniture…) or close to the antena.
Obstacles thickness in the way of the waves. The absorption is more important in diagonal as
perpendicularly
Waves cannot pass through full metallic walls. On the other hand, a perforated wall allows the waves passing
with attenuation
III.
PRÉSENTATION
Running led (green)
Push button
Alarm led (red)
Identification
label
T° Sensor
