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Name: Independent 110V AC/220V AC Photoelectronic Smoke Detector
Model: PST-SD303
Installation: Ceilling-mounted;
◆Power: 6F22 battery 9V & 220AC/110AC;
◆Battery Life: Standby around 1 year;
◆Detecting Area: 60㎡
(installation height less than 6m);
◆Have Hush & Test button;
◆Alarm Indicator: Red LED / Di Di Soud(85dB);

Reset: Auto-reset after trigger;
Operation Temp: –10°C to +50°C;
◆Woking standalone, no need connect to alarm panel;
◆Batteries & Screws included;
Youtube Video
User Manual
PST-SD303 Specifications
Name Independent Photoelectronic Smoke Detector
Model PST-SD303
Ways Photoelectroic sensor
Power Supply Battery & AC110/220V 
Battery Type 6F22 Battery DC9V
Alarm Indicator Red LED / Di Di Soud(85dB)
Detecting Area 60 square meter(installation height less than 6m)
Test Have Hush & Test button
Reset Auto-reset after trigger
Sensitivity 2.06 ± 1.3%ft
Static current 10μA
Alarm current 35mA
Operation Temp. –10°C to +50°C
Humidity 5%--95% non-condensing
Installation Ceiling mounted
Dimension 128mm dia. 38mm deep
Weight 250g
PST-SD303 Package List
Smoke x1
Screws x2
Plastic screw plug x2
AC power wired assembly x1
User Manual x1