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Name: China High Quality Wireless Outdoor Flash & Sound Siren
Model: PST-OFS03U
Installation: wall-mounted;
◆Power: DC12V;
◆Sound level:115-120dB;
◆Backup battery included;
Rated current: 350mA;
◆Wireless transmission connector: Φ3.5mm;
◆Open distance: 50-100M;
◆Wireless freq: 433Mhz or 315Mhz;

◆315Mhz siren for 433Mhz alarm;
◆433Mhz siren for 315Mhz alarm;
User Manual
Youtube Video
PST-OFS03U Specifications
Name Wireless Sound Siren with Adapter
Model PST-OFS03U
Color Red
Material ABS
Power Supply DC12V
Sound level 120dB
Wireless frequency 433MHz
Wireless transmission range 50-100meters(Open area)
Wireless transmission connector Φ3.5mm
Rated current 350mA
Operation Temp. –10°C to +50°C
Humidity 5%--95% non-condensing
Installation Wall-mounted
Dimension 19.7x11.2x7cm
Weight 470g
PST-OFS03U Package List
315MHz Wireless Siren for 433MHz system x1
Transmitter x1
Adapter x1