GRAPHTEC GL980 8-Channel midi Data Logger / Recorder 

Features:

• High speed 1 MS/s Datalogger with Voltage and Temperature Measurements
• Multifunction input on 8 isolated channels including True-RMS value measurement (Voltage/Temperature/Humidity/Pulse/Logic) 
• Large built-in RAM (4M sampling/ch) and built-in flash memory (4GB)
• Large Display 7inch LCD
• Dual external recording available through USB and SD Card Flash memory
• PC measurement with standard PC software included