GL100-N-TH Datalogger.jpg



Data logger with Illuminance/UV sensor ( Illuminance (max. 200 k lx), UV intensity (max. 30 mW/cm2)), 4.9MB on-board memory, micro-SD memory slot, USB PC interface, LCD display

The compact GL100 data logger illuminance and UV sensor for industries requiring accurate light metering with UV ray strength and accumulated luminance monitoring. This is the perfect hardware application for greenhouse, hydroponics, agriculture and botanical rooms giving maintenance techs real time environment and climate monitoring. Fine arts museums and galleries are also served for controlled environment settings.

Luminance (0 lux to 200k lux) and
UV rays (0 to 30mW/cm2)
Dual sensor module
Measurement Data
Luminance, UV ray strength, Accumulated Luminance(1)
Accumulated UV ray strength(1)
Measurement ch
UV Ray
Measurement Range
0 lux to 200k lux
UV Ray
0 to 30mW/cm2
Measurement Degree of Accuracy
UV Ray
Spectrum of Accuracy
400 to 750nm (peak 560nm)
UV Ray
260 to 400nm (peack 370nm)
Measurement Resolution
0.1 lux
UV Ray
Response Time
1ms or less
UV Ray
1ms or less
Processor Functionality
0 to 999,999 klxh
UV Ray
0 to 999,999W/cm2  (2)
Sampling Intervals
0.5 | 1 | 2 | 5 | 10 | 20 | 30 sec
1 | 2 | 5 | 10 | 20 | 30 | 60 min
Extension Cable
Approx 200mm
Operating Environment
-10º to 50ºC, 80% RH and below (non-condensed)
External Dimensions
46mm x 66mm x 19mm (excludes protrusion)
65g (2.29 oz)

(1) Displays accuumulated value only during recording
(2) Accumulated value resets when recording starts or QUIT key is pressed


Item Description
Number of channels Varies by the input module used, and measurement type is fixed with each input module
Input method, Type of input terminal
Output signal Alarm (1 channel), solid state switch with optical isolation (Optocoupler, Max. load is the 30 V, 50 mA)
Interface to PC USB (micro USB B type connector), Wireless LAN (WLAN) in GL100-WL
Wireless LAN (in GL100-WL) Standards: IEEE802.11b, Communication distance: approx. 40 m
* It varies by the condition of the LAN. Real-time transfer rate is up to 500ms. The WLAN is able to disable. (It is enabled in the factory default setting)
Storage device Built-in memory: RAM (Approx. 4.9 MB)
External memory: microSD memory card
* Maximum file size for captured data is 1.9MB. It is recommended to use the microSD memory card that supports sleep mode. (Example: TS4GUSDHC4, made by Transcend)
Display LCD (backlit monochrome, graphical type 128 x 64 dots)
Contents: Captured data and Setting menu (Stored data is not able to replay. It is able to replay using the PC application software.)
Functions • Real-time data capturing
• Display the captured data value to the LCD in real-time and save the monitoring values
• Set conditions using the Menu setting
While using USB port:
• Output captured data in real-time
• Output the saved data from the internal memory
• Full control of the GL100 from the PC application software
While using Wireless LAN (in GL100-WL):
• Output captured data in real-time
• Output the saved data from the internal memory
• Full control of the GL100 from the PC application software
• Simple control of the GL100 from the application software of Smart Device
• Send warnings via the e-mail
Alarm • Action
Outputs the signal when the measuring data reaches the present conditions of alarm
• Source
Level of measuring data
• Detecting method
Condition: Higher or lower (signal is higher or lower than the threshold)
Combination: OR
Trigger • Action
Start or stop the recording of captured data by trigger
• Source
Start trigger: OFF, Level (*), Alarm, or Date
Stop trigger: OFF, Level (*), Alarm
* Level trigger is available in the analog input of the GS-4VT, GS-4TSR, and GS-3AT module.
• Detecting method of the Level (*)
Condition: Rising or Falling (signal is passed through the threshold)
Combination: OR or AND
Dustproof and waterproof IP54 compatible (*)
* It is effective only in the condition that the input module is set to the GL100 and then the covers of connector and battery are closed. It is recommended to replace the packing of cover in periodically.
Power source • Alkaline battery (AA size x 2)
• USB bus-power (5V, 200 mA) (*)
* When AC adapter for USB device is used, the required power capacity is 5V, 1A. Battery and AC adapter is not included.
Operating environment Temperature: -10 °C to 50 °C
Humidity: up to 80 % RH (non condensed)
External dimension [W x D x H] Approx. 66 x 100 x 27 mm (exclude protrusion)
Weight GL100-N: Approx. 125 g, GL100-WL: Approx. 130
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