|
(222)
passive remote sensing
,
active remote sensing
...
|
|
(8)
photon/optical detectors
,
radio wave detectors
,
visible/infrared instruments
,
particle detectors
,
x-ray/gamma ray detectors
...
|
|
(35)
gauges
,
current/wind meters
,
temperature/humidity sensors
,
pressure/height meters
,
magnetic/motion sensors
...
|
|
|