Features:

• 20-Channel Universal Multiplexer (Solid State Relay)
• Type: 2-wire and 4-wire scanning
• Speed: Scanning speed up to 450 channels per second
• Max Volts: 120 V switching
• Bandwidth: 10 MHz
• Thermal (Offset): < 4 μV
• Built-in temperature cold junction reference

The Instek DAQ-900 is a solid state relay module that provides two groups (A/B) of 10 2-wire channels each. All 20 channels are switchable to high (HI) and low (LO) inputs, providing fully isolated inputs for the built-in digital meter or external instruments. During 4-wire resistance measurements, the channels of group A are automatically paired with the channels of group B to provide power and sense connections. The module has a built-in cold junction reference, which can greatly reduce errors caused by thermal gradients when measuring thermocouples.