![Graphtec America GL840-M Portable Bundle; Data Logger, WLAN, Battery, Pelican Case | Avalon Test Equipment Graphtec America GL840-M Portable Bundle; Data Logger, WLAN, Battery, Pelican Case | Avalon Test Equipment](https://avalontest.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/g/r/graphtec_gl840_wlan_1.png)
Graphtec America GL840-M Portable Bundle; Data Logger, WLAN, Battery, Pelican Case | Avalon Test Equipment
![Graphtec GL840-M/GL840-WV Isolated/Universal input, Standalone Multi-Chanel Datalogger | Tequipment.NET Graphtec GL840-M/GL840-WV Isolated/Universal input, Standalone Multi-Chanel Datalogger | Tequipment.NET](http://assets.tequipment.net/assets/1/7/GraphtecGL840_img3_tn.jpg)
Graphtec GL840-M/GL840-WV Isolated/Universal input, Standalone Multi-Chanel Datalogger | Tequipment.NET
![Graphtec GL840-M/GL840-WV Isolated/Universal input, Standalone Multi-Chanel Datalogger | Tequipment.NET Graphtec GL840-M/GL840-WV Isolated/Universal input, Standalone Multi-Chanel Datalogger | Tequipment.NET](http://assets.tequipment.net/assets/1/7/Graphtec_GL840M.jpg)
Graphtec GL840-M/GL840-WV Isolated/Universal input, Standalone Multi-Chanel Datalogger | Tequipment.NET
![Graphtec America GL840-WV Portable Bundle; Data Logger, WLAN, Battery, Pelican Case | Avalon Test Equipment Graphtec America GL840-WV Portable Bundle; Data Logger, WLAN, Battery, Pelican Case | Avalon Test Equipment](https://avalontest.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/g/r/graphtec_gl840_port_1.png)
Graphtec America GL840-WV Portable Bundle; Data Logger, WLAN, Battery, Pelican Case | Avalon Test Equipment
![Graphtec GL840-M/GL840-WV Isolated/Universal input, Standalone Multi-Chanel Datalogger | Tequipment.NET Graphtec GL840-M/GL840-WV Isolated/Universal input, Standalone Multi-Chanel Datalogger | Tequipment.NET](http://assets.tequipment.net/assets/1/26/DimLarge/Graphtec_GL840_Front.jpg)