* Power Supply: 9V DC Battery
* Photoelectric Sensor

* Two-Tone LED:
    Red LED Indicates Alarm
    Green LED Indicates Radio Signal is Received
* ''Battery Missing'' Lockout
* Low Battery Alarm
* High Sensitivity
* Humidity Range: 15% to 95% RH
* Operating Temperature: -10 to +50
* Built-in Sounder to give a minimum sound output of 85dB at 3m
* Senses Smoke Using the light Scatter Principle
* Quick Response to Visible Smolding Smoke
* Test Button Simulates Smoke--Use to Check Performance
* Standby Current: 40uA
* Alarm Current: 30mA