The GL500-2-1: A Versatile Data Logger for Remote Environments
The GL500-2-1 by Global Water is a robust and user-friendly data logger designed for remote monitoring applications. Here’s a closer look at its key features:

Data Acquisition and Sensor Compatibility:

Two Analog Channels: Record data from a wide range of sensors with 4-20mA outputs (0-5 volt options available).
One Digital Channel: Monitor external devices like rain gauges or relays through switch closures or receive pulses from various monitoring instruments.
Flexible Power Supply: Operates on batteries, making it ideal for off-grid locations.

Extensive Data Storage and Recording Options:

Large Storage Capacity: Stores over 81,000 readings, allowing for long-term data collection.
Four Recording Modes: Choose from fast sampling (10 samples per second), programmable intervals (from 1 second to years), logarithmic recording for exponential changes, and exception-based recording to capture specific events.

Remote Data Access and User-Friendly Software:

USB or Serial Communication: Connect to laptops or desktops for data retrieval and configuration.
GL500S-2-1 Version (Serial): Enables remote access through dial-out to a connected modem.
Global Logger II Software: Included Windows software simplifies setup, calibration, data upload, and export to spreadsheets. Offers comprehensive help files for easy navigation.
PDA Software: The included software allows for data management on PDAs (excluding Palm OS).

Additional Features:

Automatic Sensor Power Management: Provides power to connected sensors based on sampling intervals and warm-up times, optimizing battery life.
Easy Sensor Connection: Two and three-wire sensors connect directly to the internal terminal strip for quick setup.
Bluetooth Adaptor (Optional): Eliminate the need for custom PDA cables with the AK1500 Bluetooth adapter for wireless data transfer between PDAs and the GL500S-2-1 (serial version).
In summary
the GL500-2-1 is a powerful and adaptable data logger solution for remote environmental monitoring. It boasts a combination of robust features, user-friendly software, and flexible communication options, making it a valuable tool for scientists, engineers, and professionals working in remote field applications.