The Isco 581 Rapid Transfer Device (RTD) is the convenient alternative to using laptop computers in the field. Unlike laptop computers, the Isco RTD requires little or no training, so it can be easily used by anyone on your staff. Simply plug the 581 RTD into the port on your Isco instrument and your flow, rainfall, water quality, and sampling data are quickly transferred to the RTD. There are no additional cables to carry, and no buttons to push. Data transfer is completely automatic.

Back in the comfort of your office, you can quickly transfer the data from the RTD to your PC for display, storage or printout. Isco offers Flowlink®, Textlink, and Samplink Software for analyzing the data collected by your RTD.

• Size (LxWxD): 5.2 x 3.0 x 1.9 in (13.2 x 7.6 x 4.9 cm)
• Weight: 0.44 lbs (0.2 kg)
• Material: Polyurethane
• Enclosure: NEMA 4X, 6P IP68 (self-certified)
• Power: 12V DC, 40 mA average current draw (provided by Isco instrument or RTD Power/Data Transfer Cable)
• Operating Temperature: 32° to 120°F (0° to 49°C)
• Storage Temperature: 0° to 140°F (-18° to 60°C)
• Program Memory: Non-volatile, programmable flash; can be updated using a PC and the RTD Power/Data Transfer Cable

Data Storage and Communication

• Capacity: Approximately 965,000 bytes (482,500 readings); equal to 24 Isco flow meters or samplers, each with 120 days of level and rainfall readings at 15 minute intervals, plus 1000 sample events
• Cells: Maximum of 255
• Compatible instruments: Isco 4100 Series Flow Loggers, 4200 Series Flow Meters, 6700 Series Samplers, 675 Logging Rain Gauge
• Data Retrieval: Serial connection via RTD Power/Data Transfer Cable to an IBM PC® or compatible computer with Isco Flowlink 4 Software for Windows, or Flowlink Version 3.20 for DOS, Textlink Software Version 1.0, or Samplink Software Version 3.01
• Baud Rate: 9600