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Temperature Sensors and Transmitters
Temperature Sensors and Transmitters

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ST-FZR Series

RIGID AVERAGING THERMISTOR AND RTD SENSOR

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The Precon ST-FZR* Series Averaging Sensor provides precision remote temperature sensing for building automation systems and mechanical equipment room instrumentation. The active sensing elements are constructed of highly stable precision thermistor materials or platinum RTDs.The sensing elements are sealed in a 304 stainless steel probe attached to a standard handy box with mounting bracket attached.


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Features
  • Lifetime warranty
  • ±0.36°F (±0.2°C) accuracy
  • Wide selection of thermistor curves
  • Four lengths to fit to most duct sizes
  • Easy to mount to duct wall
  • Four sensing elements in a series-parallel arrangement
  • Rigid sensor
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Specifications

Accuracy:

Thermistor:±0.36℉ (0.2℃)

RTD:

Type 81, 85:±0.27℉ (0.15℃)

Type 91:±0.54℉ (0.30℃)

Temperature Stability:

Thermistor:0.24℉ (0.13℃) over five years

RTD:<0.09℉ (0.05℃) over 5 years

Heat Dissipation:2.7 mW/℃ (power needed to raise the temperature by 1℃)

Sensor Type:

Thermistor:2.252 kΩ, 3 kΩ, 10 kΩ, 20 kΩ, 100 kΩ

RTD:

Type 81:100Ω Pt 385 Curve

Type 85:1000Ω Pt 385 Curve

Type 91:1000Ω Pt 375 Curve

Temperature Coefficient:

Thermistor:Negative temperature coefficient

RTD:Positive temperature coefficient

Temperature Range:

Thermistor:10° to 230℉ (-12° to 110℃)

RTD:-67° to 240℉ (-55° to 115℃)

Enclosure:Metal handy box, weather resistant box optional

Mounting:Directly to duct with back box, clips available for serpentine mounting

Wiring Terminations:8' (2.4m) of 24 AWG prestripped pigtails

Approvals:CE

Weight:0.75 lb (0.34 kg)

Warranty:Lifetime

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QtyModelDescriptionIn StockList PriceInternet Price
ST-FZ-85-12 TANK SENSOR 1000 OHM TYPE 85 RTD 12 FT INFO166.17132.94
ST-FZ-85-25 TANK SENSOR 1000 OHM TYPE 85 RTD 25 FT INFO309.32247.46
ST-FZ-85-8 TANK SENSOR 1000 OHM TYPE 85 RTD 8 FT INFO151.59121.27
ST-FZR21-12 RIGID AVG SENSOR 2252 OHM TYPE 2 THERMISTOR 12 IN INFO99.3579.48
ST-FZR21-18 RIGID AVG SENSOR 2252 OHM TYPE 2 THERMISTOR 18 IN INFO104.3483.47
ST-FZR21-24 RIGID AVG SENSOR 2252 OHM TYPE 2 THERMISTOR 24 IN INFO106.9385.54
ST-FZR21-36 RIGID AVG SENSOR 2252 OHM TYPE 2 THERMISTOR 36 IN INFO113.2290.58
ST-FZR22-12 RIGID AVG SENSOR 3000 OHM TYPE 2 THERMISTOR 12 IN INFO99.3579.48
ST-FZR22-18 RIGID AVG SENSOR 3000 OHM TYPE 2 THERMISTOR 18 IN INFO104.3483.47
ST-FZR22-24 RIGID AVG SENSOR 3000 OHM TYPE 2 THERMISTOR 24 IN INFO106.9385.54
ST-FZR22-36 RIGID AVG SENSOR 3000 OHM TYPE 2 THERMISTOR 36 IN INFO113.2290.58
ST-FZR24-12 RIGID AVG SENSOR 10K TYPE 2 THERMISTOR 12 IN INFO99.3579.48
ST-FZR24-18 RIGID AVG SENSOR 10K TYPE 2 THERMISTOR 18 IN INFO104.3483.47
ST-FZR24-24 RIGID AVG SENSOR 10K TYPE 2 THERMISTOR 24 IN INFO106.9385.54
ST-FZR24-36 RIGID AVG SENSOR 10K TYPE 2 THERMISTOR 36 IN INFO113.2290.58
ST-FZR27-12 RIGID AVG SENSOR 100K TYPE 3 THERMISTOR 12 IN INFO99.3579.48
ST-FZR27-18 RIGID AVG SENSOR 100K TYPE 3 THERMISTOR 18 IN INFO104.3483.47
ST-FZR27-24 RIGID AVG SENSOR 100K TYPE 3 THERMISTOR 24 IN INFO106.9385.54
ST-FZR27-36 RIGID AVG SENSOR 100K TYPE 3 THERMISTOR 36 IN INFO113.2290.58
ST-FZR3-12 RIGID AVG SENSOR 10K OHM TYPE 3 THERMISTOR 12 IN INFO99.3579.48
ST-FZR3-18 RIGID AVG SENSOR 10K OHM TYPE 3 THERMISTOR 18 IN INFO104.3483.47
ST-FZR3-24 RIGID AVG SENSOR 10K OHM TYPE 3 THERMISTOR 24 IN INFO106.9385.54
ST-FZR3-36 RIGID AVG SENSOR 10K OHM TYPE 3 THERMISTOR 36 IN INFO113.2290.58
ST-FZR42-12 RIGID AVG SENSOR 20K TYPE 4 THERMISTOR 12 IN INFO99.3579.48
ST-FZR42-18 RIGID AVG SENSOR 20K TYPE 4 THERMISTOR 18 IN INFO104.3483.47
ST-FZR42-24 RIGID AVG SENSOR 20K TYPE 4 THERMISTOR 24 IN INFO106.9385.54
ST-FZR42-36 RIGID AVG SENSOR 20K TYPE 4 THERMISTOR 36 IN INFO113.2290.58
ST-FZR81-12 RIGID AVG SENSOR 100 OHM TYPE 81 RTD 12 IN INFO110.9388.74
ST-FZR81-18 RIGID AVG SENSOR 100 OHM TYPE 81 RTD 18 IN INFO116.7793.42
ST-FZR81-24 RIGID AVG SENSOR 100 OHM TYPE 81 RTD 24 IN INFO118.7795.02
ST-FZR81-36 RIGID AVG SENSOR 100 OHM TYPE 81 RTD 36 IN INFO125.17100.14
ST-FZR85-12 RIGID AVG SENSOR 1000 OHM TYPE 85 RTD 12 IN INFO110.9388.74
ST-FZR85-18 RIGID AVG SENSOR 1000 OHM TYPE 85 RTD 18 IN INFO116.7793.42
ST-FZR85-24 RIGID AVG SENSOR 1000 OHM TYPE 85 RTD 24 IN INFO118.7795.02
ST-FZR85-36 RIGID AVG SENSOR 1000 OHM TYPE 85 RTD 36 IN INFO125.17100.14
ST-FZR91-12 RIGID AVG SENSOR 1000 OHM TYPE 91 RTD 12 IN INFO110.9388.74
ST-FZR91-18 RIGID AVG SENSOR 1000 OHM TYPE 91 RTD 18 IN INFO116.7793.42
ST-FZR91-24 RIGID AVG SENSOR 1000 OHM TYPE 91 RTD 24 IN INFO118.7795.02
ST-FZR91-36 RIGID AVG SENSOR 1000 OHM TYPE 91 RTD 36 IN INFO125.17100.14
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