USER’S MANUAL
MODEL: VST-WS588IH
IMPORTANT! PLEASE READ CAREFULLY AND SAVE.
This user’s manual contains important information about your Alarm’s operation. If you are installing the Alarm
for use by others, you must leave this manual—or a copy of it—with the end user.
WIRELESS PHOTOELECTRIC SMOKE ALARM
Photoelectric smoke alarms are generally more effective at detecting smoldering fires which smolder for hours
before bursting into flame. Sources of these fires may include cigarettes burning in couches or bedding.
MAIN FEATURES
DC operated Wireless Interconnectable Smoke Alarm
Photoelectric sensor for slow smoldering fires
Non-radioactive technology for environmental friendly
Test / Hush Button
Insects proof
High and stable sensitivity
With quick fix mounting bracket for easy installation
Fitting and battery tamper-resist feature
LED operation indicator
Extra loud alarm sound over 85 dB at 3m
Low-battery and battery missing warning indicator
Auto reset after smoke is clear
SPECIFICATION
Detection Type: Photoelectric sensor for smoke
Power Source: 9V(6F22) Battery
Working frequency: 868MHz
Emission distance: >60m
（
open space
）
Standby Current: 25uA max
Alarm Current: 40mA max
Sensitivity to Smoke: 3.0-6.0 %Obs /m
Alarm Sound Level 85 Decibels at 3 meters
Operation Temperature: 4
℃
to 45
℃
Ambient Humidity: 10% to 90% Relative Humidity
Compact size: 110mm diameter
IMPORTANT SAFETY INFORMATION
1. This smoke alarm requires constant working 9-volt battery to operate properly. This smoke alarm WILL NOT
work if DC power is not connected or has failed or been interrupted for any reason AND the battery is
removed, drained or improperly connected. DO NOT use any other kind of battery except as specified. DO
NOT connect this smoke alarm to any other type of smoke alarm or auxiliary device, except those listed in
this manual.
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