The SC6520 has a similar feature set to the SC6320 but is designed for operation in Class 1 Div 2 Hazardous Environments.
The SC6520 is targeted at low rate wireless data applications requiring exceptional sensitivity and long battery life. It provides wireless connectivity for sensors, I/O and other instrumentation. The embedded battery and wireless interface provides users with a stand-alone device that greatly simplifies installation and helps minimize infrastructure costs.
Depending on configuration and reporting interval, installations with a battery life of several (10-12) years can be achieved.