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Thermistor Immersion Probes with a Standard M12 Connector

Vibration Tested Thermistor Probes with M12 Connections


Item# TH-21B-10K-1/4-0550-M12

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-9 $106.12
10-24 $100.81
25-99 $95.51
100-499 $90.20
500-999 $84.90
1000+ $79.59

In stock

Lead Time (If not in stock): 4 weeks
Vibration Tested Thermistor Probes with M12 Connections TH-21B-10K-1/4-0550-M12 TH-21B-10K-1/4-0550-M12
  • Maximum Continuous Use, 200°C (392°F)
    [Short Term Use to 250°C (482°F)] for Sensing End,
    85°C (185°F) Max at the Connector
  • Vibration Tested to ASTM-E1137: 3Gs from 5 to 500 Hz
  • Excellent Long Term Stability
  • Tolerance: ±0.2°C From 0 to 70°C (32 to 158°F)
  • Available in 2252, 3K, 5K and 10K Ω Resistances at 25°C (77°F)

TH-21B-10K-1/4-0550-M12 Model Options

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Nominal Resistance
Probe Diameter
Probe Length
Additional Feature
Sheath Housing Material

The TH-21 Series thermistor probes are constructed with the 55000 Series glass encapsulated thermistor elements which provide excellent stability and accuracy. With a maximum continuous temperature rating of -80 to 200°C (-112 to 392°F), and intermittent operation to 250°C (482°F), these thermistor sensors can be used in applications previously out of reach of epoxy coated thermistor sensors. The probes can be ordered in any length but we highly recommend a minimum immersion depth of 1.5". Short probes run the risk of error due to stem conduction effects.

Temperature Range: -50 to 200°C (-58 to 392°F) at Sensing End
Probe Connector Temperature: 85°C (185°F) Max
Thermistor Sensor: Refer to Table 1 on next page
Operating Current: 12 micro-amps
Insulation Resistance: 100 MΩ minimum at 100 Vdc at ambient temperature
Response Time: Approximately 7 seconds (50%), 8 seconds (63.2%), 14 seconds (90%) in water flowing at 0.91 m (3') per second
External Materials: 316L stainless steel sheath and housing except connector insert
IP Rating: IP67 with mating connector installed
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