GE Security 521B Photoelectric 2-Wire Smoke Detector w/CleanMe, 6/12 or 12/24VDC. S09A, S10A Compatible
The ESL 500 Series including the 521B and 521BXT self-diagnostic, two- wire photoelectric smoke detectors are the industry's first conventional direct-wire smoke detectors with analog features such as drift compensation, multi-criteria detection and remote maintenance/trouble reporting (CleanMe). The 500 Series continually monitor their own sensitivity and operational status, and provide a visual indication if they drift out of the sensitivity range or fail internal diagnostics. The 521 Series a
List Price: $ 33.00
Price: $ 33.00
Zune and iPod: Most people compare the Zune to the Touch, but after seeing how slim and surprisingly small and light it is, I consider it to be a rather unique hybrid that combines qualities of both the Touch and the Nano. It's very colorful and lovely OLED screen is slightly smaller than the touch screen, but the player itself feels quite a bit smaller and lighter. It weighs about 2/3 as much, and is noticeably smaller in width and height, while being just a hair thicker.
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ตอบลบInteresting read, cheers! I finally take in the big picture .
ตอบลบWe definitely must think a lot more in that area to see what i can do about it.
ตอบลบWell, that is very good, however what about additional choices we've got here? Would you mind making a further article regarding all of them too? Appreciate it!
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