saurabh17g

I am surveying various articles on zigbee and comparing it with other alternative technologies. I read application of zigbee as 'remotely monitoring various types of sensors for air conditioning, lightening, smoke alarms etc.' Also, zigbee is a low power, low data rate, low distance communication module. The first thing that strikes my mind is the RF transmitters/ receivers modules (available in readymade PCB types of variable carriers like 430MHz,330MHz etc). They are simple, low cost and easy to use as compared to zigbee. they would almost have same data rate. they can be easily used for the applications listed above. then why to use zigbee?