
wLSN | Reference Guide | 13.0 wLSN Smoke Detector
Bosch Security Systems, Inc. | 3/07 | F01U009440-01 43
13.0 wLSN Smoke Detector
(ISW-BSM1-SX)
The wLSN Smoke Detector features include:
• A visual status LED
• A built-in sounder for alarm alerts
Under normal conditions, the red LED flashes once every 8 sec
while the sensor monitors the surrounding environment. When the
sensor detects smoke, the LED changes from flashing to steady on
and the sounder produces a loud continuous tone. Refer to Table
21 on page 46.
Table 19: Smoke Detector Specifications
Replaceable optical
chamber
For easy maintenance
Power/Voltage Two lithium batteries; 3 VDC
Sensitivity 0.14 ± 0.04 dB/m
Cover and Wall Tamper
Switch
Transmits a tamper signal when the detector is
removed from its base or the unit is pulled
away from the wall.
Drift Compensation
Adjustment
1.64%/m (0.5%/ft) maximum
Average Alarm Current 70 mA
Sounder 85 dBA at 3 m
Self-diagnostics Feature
Monitors detector sensitivity and operational
status.
EN14604
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