Data logger comes with attachable, exchangable input modules

Graphtec GL100 Compact Multifunction Data Logger provides attachable and exchangable input modules for temperature, humidity, acceleration, carbon dioxide, luminance, UV, voltage, current, logic and pulse. Unit stores recorded readings onto internal memory or MicroSD card and delivers a 0.5 second to 30 seconds and 1 minute to 60 minutes user-selectable sampling rate. Device supports up to four channels and is available in USB and wireless LAN communication versions. http://www.tradeport.ca