 
				
				 
				
				
			| Operating Temperature Range | CPI | USB | |
|---|---|---|---|
| Spectrum  | -40° to +70°C | — | — | 
| Granite Volt 108  | 
 | For data logger connection. Baud rate selectable from 50 kbps to 1 Mbps. (Allowable cable length varies depending on baud rate, number of nodes, cable quality, and noise environment, but can be as long as 700 m under proper conditions.) | USB 2.0 full speed connection available for attaching to a PC. (Port is used to configure the module and download updates via our Device Configuration Utility.) | 
| Granite Volt 116  | 
 | For data logger connection. Baud rate selectable from 50 kbps to 1 Mbps. (Allowable cable length varies depending on baud rate, number of nodes, cable quality, and noise environment, but can be as long as 700 m under proper conditions.) | USB 2.0 full speed connection available for attaching to a PC. (Port is used to configure the module and download updates via our Device Configuration Utility.) | 
| Granite Temp 120  | 
 | Communications: RJ45 interface to Campbell Scientific data loggers and CDM measurement peripherals and sensors | Communications: USB micro-B device only, 2.0 full-speed 12 Mbps, for computer connection | 
| AM16/32B  | 
 | — | — | 
| Operating Temperature Range | CPI | USB | |
|---|---|---|---|
| AM25T  | -40° to +85°C | — | — | 
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