SF812 Smoke Detector Features： â—†Photoelectric sensor particularly effective in detecting smoldering fires â—†Built-in 85dB sounder and flashing red LED will indicate presence of smoke â—†Manual test button help to verify battery status and alarm operation â—†Low battery and sensitivity detection â—†Tamper proof protection
Specification：
Protocol	Z-Wave
Frequency	868.42MHz (EU) /908.42MHz (US)
Code Type	Learning
Transceiver	Yes
Operating Range	Up to 100 feet
LED Indication