Digi International XBee-PRO® XSC S3/S3B Long-Range RF Modules feature two times the throughput and 20 times less current draw than the previous XSC modules, making them ideal for long-range sensor applications. The modules feature an Analog Devices ADF7023 transceiver, delivering best-in-class distances up to 28 miles Line-of-Sight (LOS), along with low power consumption, drawing less than 2.5µA in power down. The XBee-PRO XSC S3/S3B hardware allows for several firmware options which are firmware compatible with the legacy 9XStream® and the legacy XBee-PRO XSC modules. Future firmware versions will support DigiMesh® along with Digi’s proprietary point-to-multipoint protocols.