• 26 multimeter functions
• Data logger function with 2048 kB memory capacity, i.e. for up to 61,600 measured values
• Infrared interface to PC for data exchange and parameters configuration (optional: IR-USB adapter and METRAwin10 software)
• Power pack connector socket for operation without batteries
• TRMS AC and AC+DC voltage measurement, bandwidths of up to 100 kHz
• TRMS AC and AC+DC current measurement, bandwidths of up to 10 kHz
• dB measuring function
• Adjustable clamp factor for measurement with current clamp sensors and transformers

Common features of the E series:

• Resolution: ± 60,000 digits, 4 6/7-place
• System hook-up via infrared interface
• Communication with PC by means of METRAwin10
• 3 connector jacks with patented automatic blocking sockets (ABS)
• TRMS AC and AC / DC function
• Voltage measurement with a basic accuracy­ of ± 0.05% (V DC)
• Automatic and manual measuring range selection
• Automatic storage of measured values
• Large, light-blue illuminated display with extra-large characters (15 mm) and an analog bar graph for dynamic processes
• Separate battery and fuse compartments
• IP 52 protection against dust and water
• Measuring categories: 1000 V CAT III and 600 V CAT IV
• Made in Germany
• DAkkS calibration certificate included

https://www.gossenmetrawatt.com/english/produkte/metrahitextra.htm[:]