NI National Instruments 781314-01 USB-TC01 Thermocouple Device

National Instruments USB-TC01 Thermocouple Measurement Device | 781314-01 | InstantDAQ

New National Instruments USB-TC01 single-channel thermocouple temperature input module with InstantDAQ technology. Not in original packaging. Unit is unused / new condition and includes the attached USB cable as shown.

Plug it into a USB port, connect a mini-thermocouple, and take temperature readings on a PC without installing a full DAQ stack first.

This listing includes

• New NI USB-TC01 measurement module (silver enclosure)
• Permanently attached USB cable (shielded, high-speed marked)
• Unit as shown

No original retail box, no printed manuals, and no thermocouple probe unless pictured. New, not in original packaging.

Identified markings on this unit

• Model: USB-TC01
• NI catalog / order number: 781314-01
• P/N: 195564D-01L
• S/N: 20F5985
• MAT: USBTC01
• Made in Hungary
• CE and FCC marks on the label

What it does The USB-TC01 is a 1-channel USB thermocouple DAQ device. InstantDAQ includes built-in viewing and logging software that loads when the device is plugged in so you can display and log temperature on a Windows PC. It also works with NI-DAQmx and LabVIEW if you want custom logging, alarms, or analysis.

Accepts a standard two-prong male mini thermocouple connector (uncompensated jack on the front, labeled + and −). Compatible thermocouple types: J, K, R, S, T, N, E, and B (Type E limited to 900 °C per NI specs).

Key specifications (manufacturer)

• Channels: 1 thermocouple
• ADC resolution: 20 bit
• Input range: ±73.125 mV
• Max sample rate: 4 S/s (software-timed)
• Conversion time: 250 ms
• Built-in cold-junction compensation
• CJC sensor: 0.6 °C typical, 1.25 °C max (0 °C to 65 °C)
• Overvoltage protection: 30 V max between TC+ and TC−
• USB 2.0 full speed, bus powered (about 100 mA typical, 150 mA max)
• Operating temperature: 0 °C to 55 °C
• Approx. size: 2.46 x 1.5 x 0.8 in. plus ~2 m USB cable
• Approx. weight: 4.1 oz

Condition New, not in original packaging. Unused module with factory-attached USB cable. Housing, label, strain relief, and connector are as shown. No OEM box, inserts, or calibration paperwork included. Sold as a new surplus / open-stock instrument. Buyer should verify operation and calibrate if the application requires documented calibration. Not rated for hazardous locations.

Notes for buyers

• Use insulated or ungrounded thermocouples when possible.
• Mini thermocouple plug polarity must match the +/− markings.
• Recommended warm-up is 15 minutes for best accuracy.
• Windows PC with USB port required. InstantDAQ behavior depends on OS and NI software support for this model.

Compact lab, bench, or field temperature logger for process, HVAC, education, and R&D when you only need one thermocouple channel.