| Photo | Mfr. Part # | Availability | Quantity | Datasheet | Series | Packaging | Product Status | Function | Type | Bus Connection | Front Connection | Number of Inputs and Type | Input Range | Input Resolution | Number of Outputs and Type | Output Range | Output Resolution | Bidirectional Channels | Counter/Timers | Sampling Rate (Per Second) | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
                 
                 
                
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                    2638A/05 120DATALOGGER MULTI I/O RJ45 USB2.0 Fluke Electronics  |  
                0 | 
                
                     | 
                 
                
                  Datasheet  | 
                
                Hydra Series III | Bulk | Obsolete | Multifunction I/O | Datalogger | RJ45, USB 2.0 | USB | 22 - Analog, 8 - Digital | 100mV ~ 300V | - | 8 - Digital | - | 22 Bits | 8 | 1 | - | 
                 
                 
                
                 | 
				
                    2638A/05/C 120DATALOGGER MULTI I/O RJ45 USB2.0 Fluke Electronics  |  
                0 | 
                
                     | 
                 
                
                  Datasheet  | 
                
                Hydra Series III | Bulk | Obsolete | Multifunction I/O | Datalogger | RJ45, USB 2.0 | USB | 22 - Analog, 8 - Digital | 100mV ~ 300V | - | 8 - Digital | - | 22 Bits | 8 | 1 | - | 
                 
                 
                
                 | 
				
                    2638A/20/C 220DATALOGGER MULTIFUNC I/O USB 2.0 Fluke Electronics  |  
                0 | 
                
                     | 
                 
                
                  Datasheet  | 
                
                Hydra Series III | Bulk | Obsolete | Multifunction I/O | Datalogger | RJ45, USB 2.0 | USB | 22 - Analog, 8 - Digital | 100mV ~ 300V | - | 8 - Digital | - | 22 Bits | 8 | 1 | - | 
                 
                 
                
                 | 
				
                    2638A/20 120DATALOGGER MULTIFUNC I/O USB 2.0 Fluke Electronics  |  
                0 | 
                
                     | 
                 
                
                  Datasheet  | 
                
                Hydra Series III | Bulk | Obsolete | Multifunction I/O | Datalogger | RJ45, USB 2.0 | USB | 22 - Analog, 8 - Digital | 100mV ~ 300V | - | 8 - Digital | - | 22 Bits | 8 | 1 | - | 
                 
                 
                
                 | 
				
                    2638A/20/C 120DATALOGGER MULTIFUNC I/O USB 2.0 Fluke Electronics  |  
                0 | 
                
                     | 
                 
                
                  Datasheet  | 
                
                Hydra Series III | Bulk | Obsolete | Multifunction I/O | Datalogger | RJ45, USB 2.0 | USB | 22 - Analog, 8 - Digital | 100mV ~ 300V | - | 8 - Digital | - | 22 Bits | 8 | 1 | - | 
                 
                 
                
                 | 
				
                    2638A/05/C 220DATALOGGER MULTIFUNC I/O USB 2.0 Fluke Electronics  |  
                0 | 
                
                     | 
                 
                
                  Datasheet  | 
                
                Hydra Series III | Bulk | Obsolete | Multifunction I/O | Datalogger | RJ45, USB 2.0 | USB | 22 - Analog, 8 - Digital | 100mV ~ 300V | - | 8 - Digital | - | 22 Bits | 8 | 1 | - |