According to the ZigBee Alliance website, in theory, you may have up to 64,000 devices on a single Personal Area Network (PAN).


Given ZigBee supports up to 250 kbps, we only recommend to support up to 32 devices on a single ZigBee PAN using Home Automation Profile.  It is important to note that for the more data intensive devices such as the Jetlun Panel Meter or the Jetlun Circuit Meter or Jetlun Power Meter, Jetlun recommends to limit up to 10 devices on a single ZigBee PAN. For Smart Energy Profile, we recommend to support up to 16 devices on a single ZigBee PAN.