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ST-O* Series

Precon Outside Air Thermistor and RTD Sensor ST-O* Series

Precon Outside Air Thermistor and RTD Sensor

 

The PreCon Model ST-O Outside Air Sensor provides precise remote temperature sensing for building automation systems and mechanical equipment room instrumentation. The active sensing element is a highly stable precision thermistor material or platinum RTD. The temperature sensitive element is sheathed in a stainless steel tube and mounted inside a ventilated, treated, white PVC shield to minimize radiant energy and weather related effects. The air sensors have a weather shield mounted on a weather resistant outlet box for easy installation on an protected outdoor surface. This rugged enclosure will assure a long life, even under extreme weather conditions.


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QtyModelDescriptionIn StockList PriceInternet Price
ST-O11K TEMP SENSOR, OSA, 10K TYPE III [11K SHUNT], 3.00" PROBE, METALLIC ENCLINFO87.0048.72
ST-O11K-X25 TEMP SENSOR, OSA, 10K TYPE III [11K SHUNT], 3.00" PROBE, METALLIC ENCLINFO95.0053.20
ST-O11K-XC25 TEMP SENSOR, OSA, 10K TYPE III [11K SHUNT], 3.00" PROBE, METALLIC ENCLINFO118.0066.08
ST-O11K-XCP25 TEMP SENSOR, OSA, 10K TYPE III [11K SHUNT], 3.00" PROBE, METALLIC ENCLINFO113.0063.28
ST-O11K-XLT TEMP SENSOR, OSA, 10K TYPE III [11K SHUNT], 3.00" PROBE, METALLIC ENCLINFO105.0058.80
ST-O21 TEMP SENSOR, OSA, 2.252K, 3.00" PROBE, METALLIC ENCLIn Stock81.0045.36
ST-O21-XD TEMP SENSOR, OSA, 2.252K, 3.00" PROBE, METALLIC ENCLINFO96.0053.76
ST-O22 TEMP SENSOR, OSA, 3K, 3.00" PROBE, METALLIC ENCLIn Stock81.0045.36
ST-O22-X25 TEMP SENSOR, OSA, 3K, 3.00" PROBE, METALLIC ENCLINFO89.0049.84
ST-O22-XC25 TEMP SENSOR, OSA, 3K, 3.00" PROBE, METALLIC ENCLINFO112.0062.72
ST-O22-XMT TEMP SENSOR, OSA, 3K, 3.00" PROBE, METALLIC ENCLINFO81.0045.36
ST-O24 TEMP SENSOR, OSA, 10K TYPE II, 3.00" PROBE, METALLIC ENCLIn Stock81.0045.36
ST-O24-X25 TEMP SENSOR, OSA, 10K TYPE II, 3.00" PROBE, METALLIC ENCLINFO89.0049.84
ST-O24-XC25 TEMP SENSOR, OSA, 10K TYPE II, 3.00" PROBE, METALLIC ENCLINFO112.0062.72
ST-O24-XCP25 TEMP SENSOR, OSA, 10K TYPE II, 3.00" PROBE, METALLIC ENCLINFO107.0059.92
ST-O24-XD TEMP SENSOR, OSA, 10K TYPE II, 3.00" PROBE, METALLIC ENCLINFO96.0053.76
ST-O24-XG TEMP SENSOR, OSA, 10K TYPE II, 3.00" PROBE, METALLIC ENCLINFO90.0050.40
ST-O24-XLT TEMP SENSOR, OSA, 10K TYPE II, 3.00" PROBE, METALLIC ENCLINFO98.0054.88
ST-O24-XMT TEMP SENSOR, OSA, 10K TYPE II, 3.00" PROBE, METALLIC ENCLINFO81.0045.36
ST-O24-XN TEMP SENSOR, OSA, 10K TYPE II, 3.00" PROBE, METALLIC ENCLINFO87.0048.72
ST-O24-XP TEMP SENSOR, OSA, 10K TYPE II, 3.00" PROBE, METALLIC ENCLINFO86.0048.16
ST-O24-XTB TEMP SENSOR, OSA, 10K TYPE II, 3.00" PROBE, METALLIC ENCLINFO84.0047.04
ST-O27 TEMP SENSOR, OSA, 100K, 3.00" PROBE, METALLIC ENCLINFO81.0045.36
ST-O27-XMT TEMP SENSOR, OSA, 100K, 3.00" PROBE, METALLIC ENCLINFO81.0045.36
ST-O3 TEMP SENSOR, OSA, 10K TYPE III, 3.00" PROBE, METALLIC ENCLIn Stock81.0045.36
ST-O3-ROTH ROTH TEMP LIGHTINFO185.00103.60
ST-O3-X25 TEMP SENSOR, OSA, 10K TYPE III, 3.00" PROBE, METALLIC ENCLINFO89.0049.84
ST-O3-XC25 TEMP SENSOR, OSA, 10K TYPE III, 3.00" PROBE, METALLIC ENCLIn Stock112.0062.72
ST-O3-XD TEMP SENSOR, OSA, 10K TYPE III, 3.00" PROBE, METALLIC ENCLINFO96.0053.76
ST-O3-XG TEMP SENSOR, OSA, 10K TYPE III, 3.00" PROBE, METALLIC ENCLINFO90.0050.40
ST-O3-XMT TEMP SENSOR, OSA, 10K TYPE III, 3.00" PROBE, METALLIC ENCLINFO81.0045.36
ST-O3-XN TEMP SENSOR, OSA, 10K TYPE III, 3.00" PROBE, METALLIC ENCLINFO87.0048.72
ST-O3-XTB TEMP SENSOR, OSA, 10K TYPE III, 3.00" PROBE, METALLIC ENCLINFO84.0047.04
ST-O42 TEMP SENSOR, OSA, 20K, 3.00" PROBE, METALLIC ENCLIn Stock81.0045.36
ST-O42-X25 TEMP SENSOR, OSA, 20K, 3.00" PROBE, METALLIC ENCLINFO89.0049.84
ST-O42-XC25 TEMP SENSOR, OSA, 20K, 3.00" PROBE, METALLIC ENCLINFO112.0062.72
ST-O42-XD TEMP SENSOR, OSA, 20K, 3.00" PROBE, METALLIC ENCLINFO96.0053.76
ST-O42-XLT TEMP SENSOR, OSA, 20K, 3.00" PROBE, METALLIC ENCLINFO98.0054.88
ST-O42-XMT TEMP SENSOR, OSA, 20K, 3.00" PROBE, METALLIC ENCLINFO95.0053.20
ST-O42-XP TEMP SENSOR, OSA, 20K, 3.00" PROBE, METALLIC ENCLINFO86.0048.16
ST-O42-XTB TEMP SENSOR, OSA, 20K, 3.00" PROBE, METALLIC ENCLINFO84.0047.04
ST-O5 TEMP SENSOR, OSA, 1K NI RTD, 5.50" PROBE, METALLIC ENCLIn Stock232.00129.92
ST-O63 TEMP SENSOR, OSA, 1K NI RTD, 3.00" PROBE, METALLIC ENCLINFO82.0045.92
ST-O63-XMT TEMP SENSOR, OSA, 1K NI RTD, 3.00" PROBE, METALLIC ENCLINFO82.0045.92
ST-O63-XN TEMP SENSOR, OSA, 1K NI RTD, 3.00" PROBE, METALLIC ENCLINFO87.0048.72
ST-O63-XN2 TEMP SENSOR, OSA, 1K NI RTD, 3.00" PROBE, METALLIC ENCLINFO106.0059.36
ST-O71 TEMP SENSOR, OSA, 100 RTD 385, 3.00" PROBE, METALLIC ENCLINFO322.00180.32
ST-O71-XN3 TEMP SENSOR, OSA, 100 RTD 385, 3.00" PROBE, METALLIC ENCLINFO376.00210.56
ST-O71-XTB TEMP SENSOR, OSA, 100 RTD 385, 3.00" PROBE, METALLIC ENCLINFO326.00182.56
ST-O77 TEMP SENSOR, OSA, 1K BALCO RTD, 5.50" PROBE, METALLIC ENCLINFO332.00185.92
ST-O78 TEMP SENSOR, OSA, 2K RTD, 5.50" PROBE, METALLIC ENCLINFO334.00187.04
ST-O81 TEMP SENSOR, OSA, 100 RTD 385, 3.00" PROBE, METALLIC ENCLIn Stock130.0072.80
ST-O81-MCC OSA 3 WIRE ST-O81 FOR MCCRORY CONTROL CO.INFO131.0073.36
ST-O81-XC25 TEMP SENSOR, OSA, 100 RTD 385, 3.00" PROBE, METALLIC ENCLINFO174.0097.44
ST-O81-XP TEMP SENSOR, OSA, 100 RTD 385, 3.00" PROBE, METALLIC ENCLINFO137.0076.72
ST-O81-XZ TEMP SENSOR, OSA, 100 RTD 385, 3.00" PROBE, METALLIC ENCLIn Stock130.0072.80
ST-O85 TEMP SENSOR, OSA, 1K RTD 385, 3.00" PROBE, METALLIC ENCLIn Stock130.0072.80
ST-O85-XG TEMP SENSOR, OSA, 1K RTD 385, 3.00" PROBE, METALLIC ENCLINFO143.0080.08
ST-O85-XMT TEMP SENSOR, OSA, 1K RTD 385, 3.00" PROBE, METALLIC ENCLINFO130.0072.80
ST-O85-XTB TEMP SENSOR, OSA, 1K RTD 385, 3.00" PROBE, METALLIC ENCLINFO134.0075.04
ST-O91 TEMP SENSOR, OSA, 1K RTD 375, 3.00" PROBE, METALLIC ENCLIn Stock130.0072.80
ST-O91-SEARS OSA SENSOR 1K OHM PLATINUMIn Stock171.3695.96
ST-O91-X25 TEMP SENSOR, OSA, 1K RTD 375, 3.00" PROBE, METALLIC ENCLINFO141.0078.96
ST-O91-XD TEMP SENSOR, OSA, 1K RTD 375, 3.00" PROBE, METALLIC ENCLINFO152.0085.12
ST-O91-XMT TEMP SENSOR, OSA, 1K RTD 375, 3.00" PROBE, METALLIC ENCLINFO130.0072.80
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Accessories

No accessories found
Features
  • Lifetime warranty
  • Vented weather shield for quick temperature response
  • Moistureproof with 8 ft (2.4m) lead
  • Ultra high accuracy optional
Specifications

Accuracy:

Thermistor: ±0.36℉ (0.2℃)

RTD:

Type 63: ±0.72℉ (0.40℃)

Type 71: +/-0.0774°F (0.043°C)

Type 81, 85: ±0.27℉ (0.15℃)

Type 91: ±0.54℉ (0.30℃)

Sensor Type:

Thermistor: 2.252 kΩ, 3 kΩ, 10 kΩ Type II, III & III w/11K shunt, 20 kΩ, 100 kΩ

RTD:

Type 63: 1000Ω Nickel

Type 71, 81: 100Ω Pt 385 Curve

Type 85: 1000Ω Pt 385 Curve

Type 91: 1000Ω Pt 375 Curve

Temperature Range:

Thermistor/RTD: -40° to 221℉ (-40° to 105℃)

Temperature Coefficient:

Thermistor: Negative temperature coefficient

RTD: Positive temperature coefficient

Temperature Stability:

Thermistor: 0.24℉ (0.13℃) over five years

RTD: Max 0.04% after 1k hours @ 500 ℃

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

Enclosure Rating: NEMA 4, Metal, weather resistant

Mounting: Directly to wall with screws or toggle bolts

Wiring Terminations: 8' (2.4m) of 24 AWG pigtails with prestripped ends, type 71 & 81 have 18" leads

Weight: 0.75 lb (0.3 Kg) with no options

Approvals: CE

Warranty: Lifetime

Certifications




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