restaurant security systems

The smoke sensor in the Nest Protect is different than any other smoke alarm we've looked at. The unit uses a split spectrum sensor, a special type of photoelectric sensor, which is designed to detect both smoky and flaming fires. The Nest Protect also has a built in a carbon monoxide sensor and will sound an alarm if it detects dangerous levels of the invisible, odorless gas which can be lethal if you breathe it for too long. To help cut down on false alarms from steam and burnt toast, the Nest Protect also uses humidity and heat sensors. We tested the detection capabilities of each smoke detector in our comparison by spraying test smoke from an aerosol can directly at each one from 5, 10 and 15 feet away. When we tested the 5 and 10 foot mark, the Nest Protect sounded its alarm after 18 seconds. At 15 feet, the alarm activated at 28 seconds. It should be noted that Nest Protect was the only smoke detector that passed all of our detection tests. Half the devices could not detect our test smoke from 10 feet away and only Nest Protect sensed danger from the 15 foot mark. All smoke alarms feature a loud blaring tone to alert you to potential dangers in your home. Nest Protect goes a step further by adding voice alerts that calmly tell you what kind of danger is present, where it is and how to proceed.

Posted March, 2011 by Admin

Filed under Uncategorized | Edit | (5) Comments

home security surveillance

There are no other flashy design elements, such as a large LED light, so compared with other ‘smarter’ detectors, it may look a bit plain, but it does have everything one would expect from a smoke/CO/gas/fire alarm. If you decide to do it yourself, the installation process is not really that difficult: first, you need to remove the mounting bracket by twisting the main body of the alarm, attach it to the wall and you will now connect the three wires from the wall to the Quick Connector as following: black to the hot side of the AC wire, white to neutral and yellow, if you need to interconnect with other existing alarms the Power has to be turned off prior to this operation. Afterwards, insert the Roost battery, plug the Quick Connector into the Roost RSA 400’s base, reattach the body of the alarm to the bracket and turn on the AC power. The green LED will indicate that the device is powered on and the red LED will blink once every 40 seconds to indicate a proper operation. The USST allows for an early smoke detection during stratification for both fast and smouldering fires using the same sensor for both and, in order to avoid false alarms, the device will operate at a low sensitive level and, in case smoke is detected, it will signal the alarm; it also adjusts and maintains a constant alarm threshold, therefore minimizing the effect of ambient conditions and it features a regulated 5V power supply for the ion chamber. If smoke has been detected, the alarm will beep three times, pause for two seconds and then repeat, the green power LED will turn off and the red smoke LED will start blinking once every second if smoke is detected by another interconnected alarm, the red LED will not turn on.

alarm systems for the home

Some of the most damaging crimes executed by professionals require a certain degree of scouted information ahead of time.

This, in turn, will give you many different customization options along with the ability to create an expandable home security/automation ecosystem that’s uniquely your own.

  1. house alarms systems
  2. house wireless alarm
  3. dallas alarm companies

Posted February, 2011 by Admin

Filed under Uncategorized | Edit | (7) Comments