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SimpliSafe was founded in 2006 by then-Harvard Business School students, Chad and Eleanor Laurans after several friends in the Cambridge area experienced home break-ins, but couldn't find a security company that was designed to help renters.
Sensors: In a security alarm, some sensors detect intrusions. Sensors' locations are at the perimeter of the protected area, within it, or both. Sensors can detect intruders by different methods. Alerting devices indicate an alarm condition. Most commonly, these are bells, sirens, also and or flashing lights. Alerting devices serve the dual ...
The Medium and Heavy models maintain zooms of 5× and 10×, while the Light model has a zoom of 1.55× and a FOV of 15 degrees. All three models now run on lithium AA batteries, with the Light having a battery life of 5 hours, the Medium 6.5, and the Heavy 6.5. [3]
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A typical IEPE sensor supply with 4 mA constant current and 25 V compliance voltage has a power consumption of 100 mW. This can be a drawback in battery powered systems. For such applications low-power IEPE sensors exist which can be operated at only 0.1 mA constant current from a 12 V supply. This may save up to 90 % power. [4]
While the FRA used to be 65 years old, Congress overhauled the program in 1983 to raise the retirement age threshold in order to account for longer life expectancies.
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