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Wireless Glass Breakage Sensor
Wireless Glass Breakage Sensor
Breaking glass has a unique frequency and sharpness of sound. Whenever this wireless, battery-operated sensor hears that audio “fingerprint”, it sounds the alarm and scares intruders away. It ...
$44.99$39.99 -
Smoke Detector
Smoke Detector
This looks like the cheap smoke alarms that drive you crazy whenever you burn the bacon. Not the same thing at all. First of all, it is a wireless unit that talks to your Einstein security system. ...
$29.99$24.99 -
Window/Door Contacts
Window/Door Contacts
These wireless magnetic sensors are the building blocks of your home security system: put one on each openable door and window in your home, office or apartment so that before you leave, your system ...
$15.99$12.99 -
Gas Sensor
Gas Sensor
We all make jokes about gas but some kinds can kill you. Carbon monoxide will poison you; natural gas can explode. This sensor will sound the alarm wirelessly if it detects any of the undesirable ...
$29.99$24.99 -
Motion Sensor
Motion Sensor
3 lasers inside this unit scan your room at distances up to 60 feet away for infrared sources that move. In other words, it sees living things. And it is designed to ignore little living things like ...
$29.99$24.99
Security systems & techniques that are better, cheaper, & easier