3V DC Battery Operated CO Alarm with Figaro Sensor, MCU Processing

Wireless Wide Angle 1.5V Battery Operated PIR Sensor, 433 or 315MHz Sending Frequency

Battery Operated Wireless PIR Detector with portable installation bracket

Wireless Intelligent Dual-element Movement Detector, 1.5V Battery Operated

9V Battery Operated Interconnected Photoelectric Wireless Smoke Detector, CE Mark, 128*38mm Size

9V Battery Operated Wired Interconnected Photoelectric Smoke Detector/Fire Alarm with CE Mark

9V Battery Operated Dual-sensor Smoke and Heat Detector, Measures 124 x 40mm

Battery Operated Independent CO and Smoke Detector with Hush Function

3 Years Battery Operated Electrochemical Sensor CO Alarm with Hush Function

3V DC Battery Operated Standalone CO Portable Detector with Sound Alarm

10 Years 3V Lithium Battery Operated Smoke Alarm, Used for Fire Alarm System, Shock-proof Design

Hot 9V Battery Operated Wireless Optical Smoke Detector, Ø128*38mm Dimensions

2014 New Cheap 9V Battery Operated Smoke Detector

DC 3V AA Battery Operated CO Detector from Heiman

2014 New 315M or 433M 3-year Life Battery Operated Wireless Magnetic Switch

9V Battery Operated Standalone Wireless Smoke Alarm, Anti-light Interference Design

Battery Operated Wireless PIR Body Sensor with Portable Installation Bracket

Battery Operated Wireless PIR Motion Sensor with Portable Installation Bracket

Built-in Rechargeable Battery Operated Mini Carbon Monoxide

7 inch battery operated digital photo frame with high resolution digi