Graphtec GL100 Data Logger
Starting at $200.00

Need Help? Call a Temperature Engineer 1-800-884-4967

We're open 8:00am to 5:30pm ET


  • Sensor available:
    • Temperature & humidity sensor
    • Acceleration & temperature sensor
    • Light & UV sensor
    • CO2 sensor
    • Voltage & temperature input terminal (4ch) module
    • Thermistor sensor input terminal (4ch) module
  • PC and smart mobile device software available
  • Industry-specific software: agriculture, logistics, power
  • Wireless access for GL100-WL model
    • Smartphone application available (Android & iOS)
  • Built-in memory 4.9MB
  • microSD memory card port
    • microSD card sold separately

What's in the Box

  • 0.5m USB Cable
  • Quick Start Guide
  • Software & manuals CD-ROM

The Graphtec GL100 data logger is a compact modular data logger. Its body allows users to switch sensors and terminals for measuring various signals. The main body dimension is a slight 2.6″ wide x 3.93″ tall x 1.06″ thick (66mm x 100mm x 27mm).

Powered by two AA batteries (not included) or USB bus power (included MicroB-A USB cable). With an onboard memory of 4.9MB and external memory via Micro SD card slot, the GL100 body also includes one USB (Micro B connection). The GL100-WL model includes factory wireless LAN (IEEE 802.11B compliant).

The display is a backlit monochrome with 128×64 dot resolution displaying measured values and settings. Recorded data is not displayed on the main unit; Captured data can only be displayed on PC using included application software.

The GL100 is supplied with software that provides excellent control over most GL Series functions. It also provides convenient data transfer and control from your PC to the GL100 — as well as converting measured data into file formats that can be used with spreadsheet applications, data analysis applications, and other software programs.

Graphtec GS-TH Temperature / Humidity Sensor
Temp range: -4 to 185°F (-20 to 85°C), humidity range: 0 to 100% RH, for use with the GL100
Graphtec GS-LXUV Light & UV Sensor
Luminance (0 lux to 200k lux) and UV rays (0 to 30mW/cm2) dual sensor module, for use with GL100
Graphtec GS-CO2 CO2 Sensor
CO2 density sensor with a measuring range of 0 to 9,999 ppm concentration
Graphtec GS-DPA-AC AC Current Sensor
Measures current, power, accumulated electric power
Graphtec GS-AC Clamps
Ratings available: 50A, 100A and 200A
Graphtec GS-4VT Voltage / Temperature Terminal
4ch of voltage DC (20mV to 50V as well as 1 to 5V) and thermocouple (K or T type) temperature measurement
Graphtec GS-4TSR Terminal Adapter
Supports two optional thermistor types, terminal with up to 4 channels of temperature measurement
Graphtec GS-3AT Acceleration / Temperature Sensor
Acceleration in 3-axis (maximum 10G), temperature 14 to 122°F (-10 to 50°C)
Graphtec GS-DPA Dual Port Adapter
Graphtec GS-EXC Extension Cable
Extension cable for sensor input modules (1.5m long)
Graphtec GS-103AT-4P Thermistor Sensor
Normal type, sensor for GS-4TSR module, 3 m, 4 pcs/set, Temp range -40 to 221°F (-40 to 105°C)
Graphtec GS-103JT-4P Thermistor Sensor
Ultra thin type, sensor for GS-4TSR module, 3m, 4 pcs/set, temp range -40 to 248°F (-40 to 120°C)


This product can be used in the following applications:

Part Number Price Available
Show Configuration
Base Price
Wireless (+$50.00)
Temperature / humidity sensor (+$95.00)
$345.00 2

Interested in Other Part Numbers?

Other part numbers are available to order but are not currently in stock. Current availability for non-stock parts is "Usually ships in 3-5 business days". Click here to select options