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Here are two slick data loggers from DATQ...

Above: Graphtec GL200 midi Logger: It's a compact, light, multi-channel data-logger featuring 10 analog measurement channels, 20mV to 50V Full Scale measurement range, and 3.5 MB internal flash memory.
It has a built-in 3.5" TFT LCD Color Display
Stand-alone or PC-connected operation
It also features input-to-output and channel-to-channel Isolation
USB PC Interface.
The GL200 comes with internal 3.5 MB flash memory to let you directly capture acquired data. Also, its built-in USB port may be used to connect any standard USB flash drive for incremental capacity. But, the USB interface may also be connected to a PC to allow data upload in real time or from memory, as well as remote configuration and real time data acquisition.



Above: Graphtech GL800 midi Logger. This is a handheld 20- to 200-channel Data Logger. It features a built-in 5.7" TFT LCD Color Display. It is capable of stand-alone or PC-connected operation. Thr GL800 features
20 Analog Channels Standard, Expandable to 200 !! Input-to-output and channel-to-channel Isolation allows for superb data precision and reliability. Connectivity via USB and Ethernet PC Interfaces.

Other features:

Wide Voltage Measurement Range
Each analog channel can measure from 20 mV to 50 VFS across eleven programmable measurement ranges.

Full Electrical Isolation Per Channel
Each analog channel is electrically isolated from all others and from instrument ground to allow accurate and safe measurements in industrial applications where ground potential differences are common.

Voltage, Current, and Temperature Measurement Functions
Use to measure voltages, currents, 4-20 mA process currents, as well as thermocouple- and RTD-based temperatures.

Four Unique "Pulse" Inputs for Discrete Measurements
Allows discrete input channels that can be used for counting and rotational speed measurement applications. Or program the discrete inputs as simple logic level input channels.

Four Alarm Outputs
Program the unit to trigger its open-collector outputs as a function of analog input signal level judgment, pulse judgment, or logic pattern.

Wide Sample Interval Selections
Sample intervals can be programmed to be one of sixteen values ranging from 100 ms to one hour.

Bright TFT LCD Color Display
The highlight of the GL800 is its superb built-in 5.7-inch color display which lets real time trending, data review, and complete instrument configuration.

Engineering Units Scaling
Each of this unit's channel permits up to four break points to be programmed for accurate scaling into meaningful units like psi, grams, newtons, gallons per minute, etc.

Flexible Triggering Options
The GL800 permits data capture to be started or stopped based upon signal level, an external event, date/time, alarm, duration, or Boolean channel combinations. Analog signal triggers can be programmed based upon level and window tests: above threshold, below threshold, inside window, or outside window.

Real Time and Post-recorded Calculations
The GL800 may be programmed to calculate average value, peak value, minimum value, and rms.

Flexible Power Requirements
Power the GL800 from its provided international AC adaptor, from an optional built-in battery pack, or from any 9 to 24 VDC source using an optional cable.

PC Connectivity via USB or Ethernet
Permits data transfer to the PC either in real time or from the GL800's memory. Further, PC allows complete configuration of the GL800.

PC Software Bundle Included
The GL800 includes a Windows application for direct capture, measurement, and monitoring of GL800 data. In addition to waveform and data value capture and display, the application can export data to an Excel file for further analysis and report creation. The software includes built-in help for quick reference.

More info at: http://www.dataq.com