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GL240 Midi Data Logger
  • GL240 Midi Data Logger

GL240 Data Logger

Quick Overview

The GL240 Data logger is a direct replacement for the GL220 and now incorporates a wireless connectivity option and integration with the GL100-WL remote units. With 10 fully isolated multi-function inputs, large internal 4GB Flash memory and a port for an external USB stick memory, this logger has significantly more memory than it predecessors, plus includes dual SD slots suitable for 32GB SDHC memory cards or wireless adaptor.
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Graphtec GL240 Data Logger


  • 10 isolated multi function inputs. (Voltage Temperature or humidity)
  • High Resolution 4.3" colour LCD display
  • Easy to use keypad menu system
  • 2 SD Memory Card Slots (Suitable for up to 32GB SDHC Type memory cards
  • 4GB SD Memory card installed in first SD Slot.
  • Optional Wireless LAN connection via SD Slot.
    • Connect the GL240 to a PC to transfer data or monitor data in real time
    • Connect the GL240 to a GL100-WL unit, max 40m range.
    • Remote monitoring of GL240 using LAN access point.
    • Remote monitoring of GL240 via Internet using router with dynamic DNS service
  • Optional battery for measurement in remote areas.
  • Record data directly to USB data stick
  • Free software to review / analyse data.


Number of Analog Inputs 10 Channels
Measurement Ranges

mV: 20, 50, 100, 200, 500mV.
V: 1, 2, 5, 10, 20, 50V and 100V.
Temperature: Thermocouples K, J, E, T, R, S, B, N, W.
Humidity: 0-100%, with optional sensor, B-530).
Scan Speed 10ms to 1 hour (10ms to 50ms: voltage only). Minimum interval per channel.
PC Interface USB 2.0, WLAN (using B-569 option)
Scaling Functions

Measured value can be converted to the specified engineering unit
• Analog voltage: Converts using four reference points (gain, offset)
• Temperature: Converts using two reference points (offset)
• Pulse count: Converts using two reference points (gain)

4.3" WQVGA TFT colour LCD.
Waveform in Y-T with digital values, Waveform only, Digital value, Digital values and statistics values
Display Language English, French, German, Chinese, Korean, Russian, Spanish, Japanese.
Operating Environment 0-45°C, 5-85%RH. (0 to 40°C with battery pack, 15 to 35°C when charging)
Power Consumption Max 36VA
External Dimensions 188 x 117 x 42mm (excluding projections)
Weight 500g (excluding AC adapter and battery)


GL240 with wireless GL100-WL configuration

Combining GL240 and GL100-WL

The GL240 can be fitted with the B-568 Wireless LAN adaptor to allow the GL240 to be connected to a single GL100-WL unit for a remote wireless sensor. The GL240 will now take in direct information from the remote GL100-WL unit. The measured value by the GL100-WL will appear in a single file along with the measurement value from the GL240 main inputs.

The Wireless LAN adaptor will also allow the GL240 to be connected to smart devices & PC to allow for the device to be remotely controlled and accessed remotely.

A GL840 can be connect to up to 5 GL100-WL's.

Customised Portable Enclosure for GL240






Customised Portable Enclosure

We can supply your GL240 data logger in a fully customised portable carry case. Options available include a rechargeable battery, fully pre-wired to bulkheads, thermocouple sockets, and fully configured by our technicians to your specific requirements.

Contact our sales team to discuss your application.

Availability: Stock Item


Related Products

Components / Downloads

For further information, technical advice, or a quotation please call or email us. If you are not sure which product you need one of our technical sales advisors will be happy to discuss your application. We also accept company purchase orders by fax or post. Credit card orders can also be placed over the phone for any product.

Data Logger
GL240 data logger with 4.3 inch color display with 10 analog measurement channels, 20mV to 100V Full Scale measurement range and 4GB of internal flash memory. Separate port for USB flash drive support, 16 bit resolution, isolated inputs. Includes software and cables. Dual SD memory ports. Wireless option allows connection to GL100-WL units, web server access, FTP backup and NTP clock synchronisation.
View FileDatasheet
   Size: (1.3 MB)
or call us for a quote
B-569 Battery pack for the GL Series data loggers. 7.2V 2900mAh Li-Ion battery pack. A single unit is suitable for powering the GL240, GL840-M & GL840-WV and GL2000 Data Logger. Two packs are required to power the GL-980.
or call us for a quote
Wireless LAN Adapter for GL240 & 840 Series Data Loggers. The B-568 WLAN option enables wireless communication with various devices. The adapter allows the Data Logger GL240 or GL840 to be used as an access point for the GL100-WL to use. If the GL240 or GL840 configured as station, PC and mobile devices can communicate directly via wireless to the data logger. The adapter uses a 2.4GHz band IEEE802.11 b/g/n.
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Logic alarm cable for GL Series data loggers. Provides access to the logic/pulse input, external trigger input, external sampling input, and alarm signal output. Cable is 2m long with flying leads and allows 4 Logic Inputs & 4 Alarm Outputs
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DC power cable for GL Series data loggers. Cable is 2m long with flying leads on one end and power adaptor on the other.
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B-530 Humidity Sensor. Range 0 - 100% RH, output 0 to 1vDC. Suitable for GL Series data loggers. Dimensions 14 mm diameter x 80mm with 3m cable and separate power socket.
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GL200 & GL220 Replacement Battery Pack.
B-517 Battery pack for the GL200 & GL220 data loggers. 7.4V 2200mAh Li-Ion battery pack. Suitable for powering the GL200 and GL220 Compact Data Logger. The correct battery pack for the GL240 is the B-569.
or call us for a quote