Wireless Smoke & Heat Detector: Detecting Smoke & heat when Danger, Fixed temperature 57ºC£¬135F heat sensor, Photoelectric sensing technology, Battery operated or AC powered, Low battery warning, Instant test button, Interconnect function available, Designed to comply with EN-54, UL539 standards.

- Independent use(9V battery) / Interconnected(AC Power) optional

- Detecting Smoke & heat when Danger.
- Photoelectric sensing technology, Fixed temperature 57ºC£¬135F heat sensor
- Battery operated or AC powered
- Low battery warning
- Easy-to-Read LED Indicator
- Instant test button
- Interconnect function available
- Alarm volume: 85dB
- Easy Installation and maintenance
- Designed to comply with EN-54, UL539 standards

• Operating Voltage: DC 9V battery or AC120V or 230 with 9V backup battery
• Alarm Output: Sound(85dB/3M) & Flash
• Smoke Alarm Density: 2.06%/ft
• Alarm Temperature: 57ºC (135ºF) 
• Installation Method: Ceiling Mounted
• Operating Temperature: -10¡ãC ~ +70¡ãC; Operating Humidity: ¨Q90%RH
• Dimensions: 124mm(Dia)*40mm(H)