Showing all 11 results
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DT233: Thermocouple / milliVolt Input Two-Wire Dual Transmitter
- Dual channels
- Universal thermocouple, mV input
- 4-20mA outputs (sink/source)
- 7-32V DC loop/local
Click here to watch a short video highlighting the features of the DT233.
$315Select options -
DT333: Thermocouple / milliVolt Input Four-Wire Dual Transmitter
- Dual channels
- Universal thermocouple, mV inputs
- Isolated current or voltage outputs
- 6-32V DC local/bus power
$370Select options -
TT233: Thermocouple / milliVolt Input Two-Wire Transmitter
- Universal TC type J, K, T, R, S, E, B, N or ±100mV input
- 4-20mA ouput (sink/source)
- 12-32 V DC loop/local power
$195Select options -
TT333: Thermocouple / milliVolt Input Four-wire Transmitter
- Universal thermocouple / millivolt input
- Universal current / voltage output
- 12-32V DC local / bus power
$265Select options -
VPM3000 Series: Universal Transmitter / Alarm with Display
- Big, bright display
- 4-20mA, ±10V, thermocouple, or RTD input
- 4-20mA, Modbus serial, or alarm relay output options
$345 – $545Select options -
655T, 656T: Single or Dual Channel, Thermocouple/milliVolt Input, Loop-powered Transmitter
- TC (types J, K T, R, S, E, B, N), ±1V DC, selectable range/type input
- 4 to 20mA DC output
- 12-50V DC from output loop power
- DIP-switch configuration, signal linearizer, push-button calibration
$285 – $510Read more -
801T: Universal Input Intelligent Temperature Transmitter
- 0 to 20mA DC, 0 to 10V DC output
- Mechanical relay (25V @ 5A) alarm
- 10-36V DC power
- Software configured
- Performs linearization, square root extraction, and optional limit alarm functions
$375 – $520Read more -
ST132: Thermocouple/milliVolt Input Head-mount Transmitter
- Universal thermocouple (8 types) or ±100mV input
- 4-20mA output
- Loop-powered, 7-32V DC
$140Select options -
ST133: Isolated Transmitter; Thermocouple/mV Input
- TC type J, K, T, R, S, E, B, and N or ±100mV input
- 1500V isolation
- 4 to 20mA DC output
- USB-configured
$165Select options -
uB37, uB47: Thermocouple Field Input Module
- Bluetooth® wireless configuration option
- Thermocouple field input
- Voltage host output
$120 – $240Select options -
250T-TC, 350T-TC, 450T-TC Loop, DC, or AC-Power Transmitter
- J, K, T, E, R, S, B Thermocouple Input
- DC Voltage or DC Current Output
$465 – $545Select options
Thermocouple Temperature Transmitters - Continued

Points of Consideration When Using Thermocouples to Measure Temperature
Thermocouples work by the temperature difference between one end of a conductor and the other end that produces the small electromotive force (emf), or charge imbalance, that leads us to the temperature difference across the conductor.
OK, simple enough, but how do you actually measure this emf in order to discern its relationship to temperature?
Read Temperature Measurement Using Thermocouples Industry Technology Paper for more detailed information.
Since accuracy will ultimately play a significant role in selecting a sensor type, we should be familiar with potential sources of error when making temperature measurements with thermocouples. Some of these considerations may steer us from one T/C type to another, or perhaps to another sensor type, like RTD transmitters for example.
12 Points to Consider When Using Temperature Thermocouple Transmitters
- Thermocouple Sensor Inaccuracy
- Thermocouple Sensor Non-Linearity
- Thermocouple Sensor Sensitivity
- Sensor Drift, Aging, and De-Calibration
- Choice of Extension Wire
- Response Time
- Cold Junction Compensation
- Connection Problems
- Thermal Shunting and Immersion Error
- Lead Resistance
- Noise
- Common-Mode Voltage