104i High Resolution Differential Thermometer

The SBIR Model 104i High Resolution Differential Thermometer provides high accuracy temperature measurement without sacrificing ease of use.

Two ultra-stable iProbe temperature sensors are included allowing the instrument to simultaneously display the absolute temperature of two points and also the temperature difference between these two points. Additionally, the 104i thermometer offers four temperature ranges from -40°C to 175°C absolute.

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  • iProbe Advanced Probe Design
    The iProbe is an intelligent temperature sensor that can be calibrated independently of the 104i system. To re-calibrate the system you need only exchange the probe with a recently calibrated one. No special equipment is required and there is no down time in the test area.

  • High Accuracy and Stability
    Ultra-stable, highly responsive iProbes are used to provide long term accuracy and repeatability of under 0.010°C.

  • Battery Operation
    Since the netbook supports battery powered operation, the system can be conveniently used without a power supply connection for several hours on a single charge.

  • Remote Control
    The system is equipped with a network server which allows remote monitoring of temperatures from any computer on the network. A client application is provided to allow other PCs to remotely access all features of the 104i Thermometer.

  • Multi-Function Netbook Computer
    The 104i Thermometer features a modern netbook computer attached to an electronics interface module which allows communication with the iProbe.

  • Real Time Data Logging
    The 104i displays both the temperature and a graphical representation of this temperature readout over a period of time.
104 Thermometer Pic
  • IEEE Std. 488 Interface (GPIB)
    The implementation of the ANSI/IEEE Std. 488.1-1987 allows for computer control of all blackbody, calibration, illuminator, and target wheel functions.

  • Multiple iProbes
    An infinite number of different calibrated iProbes can be plugged into the system and used as the 104i’s calibrated standard(s).

    Note: The 104i supports an infinite number of different calibrated iProbes for use as standards, however only 2 can be plugged in and used for calibration purposes at a time.

104 Thermometer Pic Probe Dimensions

F-Type Probe # 310-000-172


T-Type Probe # 310-000-190

Controller Dimensions: See PDF outline drawing

Display Resolution .0001°C
Accuracy ±0.0005 (T-25°C) or 0.007°C, whichever is greater
Stability 0.00025 (-40°C to 0°C), 0.0001°C (0°C to 50°C),
0.00025°C (50°C to 100°C), 0.0005°C (100°C to 125°C),
0.001°C (125°C to 175°C)
Temperature Measurement Ranges
  Standard Temperature Range A 0°C to 100°C
  Optional Range B 0°C to 175°C
  Optional Range C -40°C to 100°C
  Optional Range D -40°C to 175°C
Temperature Sensors Reference Grade Thermistors
Sensor Cable length 5 ft.
Sensor Extension Cables
Available in Various Lengths
Dimensions 11.00” x 8.00” x 3.13”
Approximate Weight 7.5 lbs.
Line Voltage Selectable 100/120/220/240/V, 50/60 Hz

Please contact the SBIR sales team at (805) 965-3669 or sales@sbir.com for applications engineering assistance or specific test needs.

Information subject to change without notice.