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Name: Wireless Door/Window Sensor Working with low battery alert function
Model: PST-G90-DS
Installation: wall-mounted;
◆Power: AAA 1.5V X1 battery;
◆Battery Life: Standby around 1 year;
◆Alarm indicator: Red LED;
◆Sensing distance: 15-30mm;
◆Open distance: 100-150M;
◆Chip IC: EV1527 IC;
◆Wireless freq: 433Mhz or 315Mhz;
◆Operation Temp: –10°C to +50°C;
◆Batteries, Adhesive Paper included;
User Manual
Youtube Video
PST-G90-DS Specifications
Name Wireless Door Magnet Sensor with Built in Antenna
Model PST-G90-DS
Power Supply Battery
Battery Type AAA 1.5V 
Wireless frequency 433MHz
Wireless transmission range 100-200 meters(Open area)
Coding chip and Resistance EV1527/330KΩ
Alarm indicator Red LED
Low battery indicator Red LED
Alarm signal transmit Support Open/Close the door alarm signal Transmit
Support Low battery signal Transmit
Antenna type Spring antenna
Static current 10μA
Alarm current 30mA
Operation Temp. –10°C to +50°C
Humidity 5%--95% non-condensing
PST-G90-DS Package List
Door/Window Magnetic Sensor x1
Adhesive Paper x1
Bettery x1