The GL500A is meant to record fewer channels, but at faster speeds and with great input isolation. You can have 4 or 8 channels with isolation, or 8 to 16 channels without. Voltage and temperature inputs are available. Voltages ranges from +/-100mV to +/-100V!

Built-in 14-bit A/D conversion ensures great vertical axis resolution. And it's got alarm and extrernal trigger inputs. Even with 16 channels installed you can sample up to 1kHz.

All GL models have a standard PCMCIA port so you can use flash media cards for easy data exchange and practically unlimited storage space!

An exciting new feature is our DUAL SPEED capturing mode...you can log data at a low rate continuously, but triggered data will be sampled much faster and logged to a separate file! You can capture high speed data at rates up to 500 kHz for one channel, or 20 kHz when capturing all 16 channels.

We upgraded the USB to USB 2.0, and Ethernet connection makes it a network-ready instrument. User-friendly application software allows monitoring data in analog waveform, x-Y or FFT modes.

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The GL450 comes with 10 isolated channels, each of which can be set to voltage levels, various thermocouple and RTD types, or relative humidity measurements. In addition there are alarm outputs, frequency inputs, and several other handy interconnections built in. There are two bays on the back, which accept our plug-in input modules. As mentioned, a 10-ch module comes standard, but you can also get 20 and 50 channel modules, and plug them in any combination! Use two 50's to get 100 channels, for example. Or a 10 + 50 to get 60 channels. There are no restrictions.

And look at the size - not much wider than a ballpoint pen, and extremely light and compact. That's the GL450, and only from Graphtec.

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The GL450 is meant for relatively slow datalogging of up to 100 channels. It can replace older loggers like the Russtrak Ranger, and yet it strikes out in a new direction, too, with bold new features like on-board Ethernet and USB 2.0 interfaces, a color display, and software for setup, control, and data transfer and direct streaming to your computer.