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Wireless video doorbell and the difference between wired doorbell
2011-10-13 11:00:42

On the surface, perhaps only see the difference between a wired and wireless, but the technology is a huge difference.

Visual doorbell using connection cable installation, with distance, data transmission capacity, signal stability insurmountable advantage, but is also quite obvious to determine, plan well in advance, wiring too much trouble.

Wireless doorbell with analog and digital signals, analog signals as a natural limitations from the past, poor immunity, signal instability, less so on the data stream. Therefore, the current mainstream technology are digital signals. Because digital signals used in the more advanced stuff, because it can provide chip and technology resources is relatively small, so it is relatively higher than wired access threshold visual doorbell. 2.4G wireless signal using the motherboard chipset, the high cost of cable than about 300 yuan. Because some wireless video doorbell, in developed, but also to do a feature on the expansion, the column such as: photo storage, photo, time display, so the cost because it has also increased a lot.

Therefore, in the selling price, wireless video doorbell, the same size LCD screen, about double the price increase is normal, because wireless video doorbell can have data transfer limits, because it costs nearly doubled. Because the bigger the screen, the greater the same data transmission, the higher hardware requirements, in the open ground, 2.4G wireless doorbell, the transmission can stabilize at 300 to 400 meters, has a 2.4G wireless video intercom limits of the.

Wireless video intercom doorbell wired doorbell with the biggest difference is the indoor unit one can move, one is fixed, wireless installation is simple, direct indoor and outdoor use lithium batteries and cell phones can .

Wireless video doorbell and the difference between wired doorbell

Wireless video doorbell and the difference between wired doorbell


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