The Radiocrafts Zigbee / 802.15.4 modules conform to their standard 16.4 x 36.5 x 3.5 mm physical format and pin-out so are completely interchangeable on the PCB.
The following products are available.
ZigBee Smart Energy (SE)
Compact ZigBee module dedicated for Smart Energy applications (ZNM-SE). The module is based on a ZigBee PRO compliant platform and offers a complete ZigBee PRO protocol included added support for the ZigBee Smart Energy profile.
ZigBee- and ZigBee SE
The RC241x(HP) is a complete ZigBee module supporting Full Function Device (FFD) and Reduced Function Device (RFD) operation with IEEE 802.15.4 compliant PHY and MAC layers. The compact shielded module is optionally available with an integrated antenna or RF connector.