A:
** DS-100 : ( when frequency power is 10mw )
HERTZ Detection range
40 Mhz 8 meters
100 Mhz 9 "
400 Mhz 9 "
800 Mhz 9 "
1.2 Ghz 8 "
2.4 Ghz 8 "
4 Ghz 7 "
6 Ghz 6 "
7 Ghz 5 meters

DETECTION RANGE IS MINIMUM 1 METER TO 2.5 METERS