You should consider 8100 for USB Voltage Data Acquisition modules. Because they let you use read voltage with a PC USB port.
USB Voltage Data Acquisition
The 8100 Series provides improved cost/performance compared to similarly priced 16-bit DAQ devices. Each device provides seven isolated differential voltage analog inputs.
USB Analog Inputs
8100 Series devices provide seven 16-bit Isolated voltage USB analog inputs. The analog input ranges include six different voltage ranges between +/-25mV and +/-10Vdc.
The 8100 is compatible with a number of software options.
8100 series USB voltage sensor modules allow the simple measurement of industry standard voltage sensor signals. So, you can easily connect your existing sensors to a modern sensor monitoring system. Furthermore, they are useful in HVAC systems, refrigeration systems, chillers, environmental monitoring, computer room monitoring, dryer, and a variety of other applications.
Simple to use USB voltage measurement
When you need simple to use voltage measurement, use the D8100 series. In other words, 8100 series isolated voltage input modules are a simple way to add sensor measurement to an environmental monitoring system.
Useful because it provides simple screw clamp wired inputs. It is easily used for sensor monitoring using industry standard sensor signals. Firstly, the 8100 has simple to use Windows compatible software available. Secondly it uses industry standard voltage sensor signals. Therefore, sensor measurement or sensor profile recording is simple, data can be updated real time directly into Excel, on custom screens, recorded to file, and more! Total number of channels can be extended with additional units, as well as allowing an increased number of sensors.
So, you can, monitor 7 sensors per unit. Also, multiple units per system, expandable as needed.
• User-selectable analog input range per channel.
• USB communications interface.
• Modbus RTU Protocol.
• 500Vrms analog input isolation.
• 16-bit analog input measurement resolution.
• Continuous self-calibration
• Programmable analog input digital filters.
• Requires +24V unregulated supply, 1.4W.
• Removable screw terminal plug connectors.
• 3ft USB cable included.
[PC and Software, are not included]