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Name: China Good Quality Wireless Photoelectric Smoke Alarm With Lithium Battery
Model: PST-SD203N
Installation: Ceilling-mounted;
◆Power: 3.6V lithium battery;
◆Ways:Photoelectroic sensor;
◆Have Test button;
◆Reset: Auto-reset after trigger
◆Open distance: 100-150M;
◆Chip IC: 2262 and 1527 IC Option;
◆Wireless freq: 433Mhz;
◆Batteries & Screws included;
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PST-SD203N Specifications
Name Wireless Photoelectronic Smoke Detector 
Model PST-SD203N
Ways Photoelectroic sensor
Power Supply Battery
Battery Type 3.6V lithium battery
Wireless frequency 433MHz
Wireless transmission range 100-200 meters(Open area)
Coding chip and Resistance 2262/1.5-4.7MΩ or EV1527/330KΩ
Alarm Indicator Red LED / Di Di Soud(85dB)
Detecting Area 60 square meter(installation height less than 6m)
Test Have Test button
Reset Auto-reset after trigger
Static current 10μA
Alarm current ≤20mA
Operation Temp. –10°C to +50°C
Humidity 5%--95% non-condensing
Installation Ceiling mounted
Dimension 101mm dia. 44mm deep
PST-SD203N Package List
Smoke x1
Battery x1
Screws x2
Plastic screw plug x2
User Manual x1