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FALSE ALARM IMMUNITY:
False Alarm Source
Distance
Modulated Response
Unmodulated Response
(feet)
Sunlight, direct, reflected
—
No alarm
No alarm
Vibration
N/A
No alarm
N/A
Radio frequency interference
1
No alarm (keyed)
No alarm (steady)
Arc welding
40
No alarm
No alarm
6 kw heater
3
No alarm
No alarm
250 w vapor lamp
3
No alarm
No alarm
300 w incandescent lamp
3
No alarm
No alarm
500 w unshielded quartz halogen lamp
8
No alarm
No alarm
1500 w electric radiant heater
3
No alarm
No alarm
Two 34 w fluorescent lamps
3
No alarm
No alarm
Very High Sensitivity
False Alarm Source
Distance
Modulated Response
Unmodulated Response
(feet)
Sunlight, direct, reflected
—
No alarm
No alarm
Vibration
N/A
No alarm
N/A
Radio frequency interference
1
No alarm (keyed)
No alarm (steady)
Arc welding
10
No alarm
No alarm
6 kw heater
3
No alarm
No alarm
250 w vapor lamp
3
No alarm
No alarm
300 w incandescent lamp
3
No alarm
No alarm
500 w unshielded quartz halogen lamp
8
No alarm
No alarm
1500 w electric radiant heater
3
No alarm
No alarm
Two 34 w fluorescent lamps
3
No alarm
No alarm
Medium Sensitivity