Sierra Wireless (News - Alert) has unveiled four new products at the Mobile Wireless Congress (MWC) in Barcelona, Spain:

Two 4G mobile hotspots: the AirCard 753S and AirCard 754S connect up to five WiFi-enabled devices simultaneously to the Internet over Dual-Carrier HSPA+ and LTE (News - Alert) networks, respectively. Both products are scheduled for commercial shipments in the second quarter of this year. The company will also offer a suite of accessories designed to enhance performance and functionality, e.g. car chargers, silicone skins, extended batteries, and cradles with integrated antennas for indoor use and desktop charging. 

Two 4G USB modems: The AirCard 319U offers download speeds of up to 42 Mbps and upload speeds of up to 5.76 Mbps. In addition, it features a swivel hinge design that allows the body of the modem to be tucked up against the side of the notebook. The AirCard 320U is the company’s first in a family of USB modems for LTE networks. It offers downloads up to 100 Mbps and uploads up to 50 Mbps. There is built-in support for both Windows and OS X with automatic software installation direct from the device.

In addition, Sierra Wireless is presenting new features for its M2M application development framework. They include a new third-party library, an integrated debugger, and a new user interface for remote device management. The framework features a range of building blocks that accelerate the development process, allowing device and system manufacturers to bring products to market faster and reduce costs.