Unlike other outdoor systems, SDS Perimeter is not a listening device—no audio leaves the sensor, and the microphones are tuned for high-decibel impulsive sounds.

Ring Alarm Outdoor Siren goes on sale on March 31 and costs $89.99 / £69 there is currently no Australian launch date. The second generation Ring Alarm is already on sale in the US for $249.

Some window sensors use loud chimes or siren-like alarms, while others send a notification to your phone. Regardless of how they alert you, most window sensors work the same way.

OMV601 Outdoor MotionViewer Detector Oct. 23, 2015 Battery-powered PIR motion sensor with an integrated video camera and infrared illuminators Related To: ...

Security startup Kangaroo is at CES 2019 with five new products that will be available throughout the year. Kangaroo will start offering entry sensors, climate sensors, smoke alarms, sirens, and ...