Advantages of Zigbee

① low power consumption. At the low power consumption standby mode, two No.5 dry-charged batteries can support one node to work 6 ~ 24 months, or even longer.
② low cost. Because of dramatically simplifying the protocol, Zigbee reduces the requirements for the communications controller. Zigbee is protocol patent fee free.
③ low rate. Zigbee can work at the low rate of 20 ~ 250 kbps.
④ short range. Transmission range is generally between 10 ~ 100 m (32.8feet~328 feet).
⑤ short time delay. The response speed of Zigbee is very fast, in general, it merely need 15ms from the into work state and it merely need 30 ms from nodes connect into the network state.。
⑥ high capacity. Zigbee can adopt star topology, platy and mesh network structure, composing of up to 65, 000 network node.
⑦ high security. Zigbee provides a three-tier security model, including the use of Worry-Free Security settings, the access control list (ACL) to prevent illegally accessing the data and Advanced Encryption Standard (AES 128) symmetry password.
⑧ license-free frequency band. Zigbee adopts direct sequence spread spectrum of the industrial scientific medical (ISM) band. 2. 4 GHz (global), 915 MHz (USA) and 868 MHz (Europe)