1 800 665 7301 | info@tmetrix.com

Discount Products: Look through products available for a 25% – 50% discount in 2020. The items provided on a first come, first serve basis.
View Discounted Products

GRAPHTEC GL820 – Data logger 20 Channels

GRAPHTEC GL820 – Data logger 20 Channels

Data logger with 5.7” color display, with 20 channels, expandable up to 200 ch, 2GB on-board memory, USB/LAN PC I/F. 16-bit

SKU: Data logger 20 Channels Category:


Data logger with 5.7” color display, with 20 channels, expandable up to 200 ch, 2GB on-board memory, USB/LAN PC I/F. 16-bit

Modern conveniences such as Ethernet and USB 2.0 interfaces are included, along with a USB flash memory port, so you can easily get the data out of your GL820 and transfer it to your computer. Data are normally captured into the GL’s large internal memory, at rates selectable from 10 ms to 1/hour! You can record for hours, days, or even weeks with the 12 MS memory.

Expandable up to 200 channels!

High Isolation

We built in 125 VAC RMS / 350 VDC isolation on all the analog channels, for a few reasons. First, it means you can hook up your GL midi LOGGER without the normal worry about ground loops, providing you more flexibility and control. Second, it just makes good technical sense to isolate the inputs, and is even a nice safety feature. Few products in this class provide this kind of isolation as standard…or even as an option!

With its dedicated USB port for flash drives, the GL820 makes it easy to transfer data on to your PC or laptop for direct processing.

Ring Memory Mode
The most recent data is saved when internal memory or external memory is configured in ring memory mode.

Main Features

– Built-in Ethernet and USB 2.0 interfaces
– Compact 7.6”x4.8” and approx weight of 1lb
– Direct recording capability to USB memory stick
– 2GB Built-in Non-volatile memory retains data even after the GL800 is turned off
– Voltage (20mV to 50V ), Temp Thermo-couplers (K, E, J, T, N, R, S, T, B, W) and Humidity
– Up to 200 Multi-function PhotoMOS relay isolated input channels
– Optional battery pack provides up to 6 hours of continuous recording
– Battery also functions as a UPS in the event of AC power failure
– 16-bit A/D converters (14-bit processing)
– Max Sample rate of 100 Samples/second
– Statistical analysis functions

Options & Upgrades
– B-537 Extension terminal base kit
– B-538 20 channel extension terminal set
– B-517 Battery pack
– B-530 Humidity sensor
– B-513 Logic/Alarm cable
– B-514 DC power cable


Additional information



Product Categories

Data Acquisition


There are no reviews yet!

Be the first to write a review


Contact ACA TMetrix Inc.


3585 Laird Road, Unit 15 & 16, Mississauga ON L5L 5Z8

Phone: 1-800-665-7301

Fax: 1-905-890-1959

Email: info@tmetrix.com

About ACA TMetrix Inc.

ACA TMetrix Inc. is a leading supplier of test instruments and design tools in Canada. For over 50 years we have provided services and support for products that are manufactured by the world's leading instrument suppliers.

TMetrix Ltd. is Part of the ACA Group of Companies. Allan Crawford Associates (ACA), is one of Canada's largest distributors of electronic components, test equipment, and scientific solutions.

Our Location